Windows 11 installation has failed 0xc1900101 It always fails at around 70%, and all the error codes I got points to incompatible or corrupted driver (as per others who experienced the same). Jun 23, 2025 · For anything older without SSE4. 7262) does not install. Microsoft has explained how to fix it. At 75% i haved BSOD and code INVALID DATA ACCESS TRAP At the end with the error: Error Code: 0xC1900101 0x40021 The installation failed in the SECOND_BOOT phase with an error during… This guide will show you troubleshooting steps for problems encountered during and after installing Windows 11 version 24H2 (2024 Update). Oct 8, 2025 · The infamous 0xC1900101 error code. The first one (still n Jul 4, 2024 · And If i also try to install the Windows 11 from the setup like from the older version of windows, it finishes and then restarts and reverts to the previous windows and then i get the error message: 0xC1900101 - 0x20017 The installation failed in the safe_os phase with an error during boot operation. Here is a list that you can follow to see if your Windows 11 installation task was blocked for the same reasons. I made several attempts at Windows 11 upgrade & installation. Boot from USB and Install: Choose the clean install option, deleting partitions only if you understand partitioning. When I am trying to upgrade my Windows 10 20H2 to Windows 11 through the Installation Assistant, I keep getting the 0xc1900107. I have been running Windows 10 Pro for many years on a custom built desktop PC. Apr 21, 2023 · Repair Install Windows 11 with an In-place Upgrade This tutorial will show you how to do a repair install of Windows 11 by performing an in-place upgrade without losing anything. The latest is 0xc1900101. Mar 6, 2025 · Are you still vexed by the Windows 11 24H2 install error 0xC1900101 - 0x40017? No worries. If it can't, Windows 11 won't install. Jan 23, 2025 · Windows error code 0xc1900101 can be annoying as it doesn't state any reason, so troubleshooting becomes challenging. And it failed to update twice today. Follow these instructions to troubleshoot and resolve the issue. 0xC1900101 Jun 26, 2025 · Update: we were unable to upgrade to windows 11 without doing a fresh install. Jun 2, 2025 · Due to some reason, my pc is acting a bit strange so I decided to use the function System > Recovery > Fix problems using Windows Update. To help me narrow down the issue, please do the following: Open the following folder: Zip the Rollback folder and upload the file here. I messed with my BIOS and changed these so now they… Jan 7, 2025 · Windows 11 24H2 install, 0xC1900101 - 0x4000D The installation failed in the SECOND_BOOT phase with an error during MIGRATE_DATA operation See some of the most common upgrade and installation errors for Windows 10 and Windows 11, and what you can do to try to fix them. Jul 4, 2023 · Fix Error 0xC1900101 - 0x40017, The installation failed in the SECOND_BOOT phase with an error during BOOT operation during Windows Upgrade. 09. This behavior has never changed. This is the second issue I have experienced with this product since purchase. 1 Use the Windows Update Troubleshooter You can run the Windows Update troubleshooter via Windows Settings. But some systems fail to install it with errors such as 0x800f0991, 0x800f081e, 0x80070306, or 0xC1900101. Every time it goes through the whole process and at the end it says windows 11 failed to update. Jul 4, 2023 · The message you see could be: We couldn’t install Windows. Oct 8, 2022 · whenever you visited Windows update settings area. i'm now back in and Check For Updates says if failed w/ 0xc1900101 ~ any ideas? Oct 15, 2025 · This article discusses how to resolve Windows upgrade failures that generate error code 0xC1900101-0x20017. I tried all the options on the Internet 4 days ago · Windows 11 update Install error - 0xc1900101 FredricJLowe Sunday at 8:29 AM Prev 1 2 Dec 13, 2022 · Can't update Windows because of this error? Here's how to fix it. For Windows Server 2016 or Windows Aug 16, 2015 · Hello, Getting the above error when I try to upgrade in place my windows 10 to 11. I am… Aug 10, 2025 · Hello! I've been having trouble updating to Windows 11. SMS sharing is also affected. 0xC1900101 Jan 6, 2025 · Hello, my computer running WIndows 11 Insider Preview 23H2 26016. I get this error code Install error- 0xc1900101. Let us check out the methods, one at a time. After the upgrade supposedly finished, I was met with Bug Check (PAGE_FAULT_IN_NONPAGED_AREA), and my PC restarted into a weird state where… Aug 11, 2025 · Hello. Apr 7, 2022 · Hi. Oct 1, 2025 · If Windows 11 25H2 Update Version is not installing on your computer, here are some working solutions to help you install the Upgrade. How to Fix Windows 11/10 Update Error 0xC1900101 [Solution 2025]How to Solve Windows Install Error 0xc1900101 In Windows 10. However I have one pc which keeps failing during second boot phase. Sep 8, 2025 · "The Windows 11 version 24H2 install error with code 0xc1900101 is typically a driver-related issue. Apr 15, 2025 · I'm having problems upgrading my laptop from Windows 10 Home to Windows 11. Due to some reason, you choose to upgrade from Windows Server 2012R2 to Server 2019 via an in-place Jun 28, 2021 · I am trying to install the new Windows 11 update from Windows Update, but I keep getting error 0xc1900101. It has the following specs: Processor Intel(R) Core(TM) i7-10510U CPU @ 1. Once the troubleshooter has finished scanning, check if any issues are identified. Apr 8, 2025 · He was able to resolve Windows 11 installation has failed problem, especially related to updates or corrupted installation files There's a place in the process of using it where you need to use the command But don't worry I'll show you how to do it! Feb 7, 2025 · Hi I am using Windows 11 23H2 and last monday update was downloaded for Windows24H2, I restarted the machine but it failed with Install error - 0xc1900101 I searched Nov 15, 2024 · The Windows 11 24H2 Update will not install on my computer and has an error code of 0xc1900101. Do you keep getting error 0xc1900101 whenever you try to update your Windows 11? Learn how to fix error code 0xc1900101 on Windows 11 to get rid of this annoying Sep 17, 2025 · Want to know how to fix Windows 11 installation problems? We've researched the quickest ways to fix the most common ones. Dec 25, 2021 · Trying to install Windows 11 - moving from Windows 10 - on a new computer received for Christmas - unable to install due to 0xC1900101 error! Tried again and again, but it continues to print the same error, in both Windows Update and the Installation Assistant. Feb 1, 2023 · Here is a list that you can follow to see if your Windows 11 installation task was blocked for the same reasons. Causes of 'Windows 11 installation has failed' Error: Mar 26, 2025 · Windows 11 isn't too demanding, but it does need your PC to meet certain specifications. Jun 30, 2021 · "Windows 11 Insider Preview 10. 5 or later before guest OS upgrade, the PVSCSI driver installed in the guest is not compatible with the guest OS after upgrade. Let's find out why and get Windows 11 running with these easy to follow steps. Jul 27, 2025 · Error code 0xc1900101 is typically driver-related. Following the above steps, you will be able to fix the issue that you are facing. 51 (co_release)Failed to install on 30-06-2021-0xc1900101"My pc successfully passed compatibility test and can run Sep 10, 2025 · Hi, I've been trying to update my Windows 11 installation for some time - updating to 24H2 via Windows update failed numerous times over the last year or so, and WIndows Update to 25H2 has now failed as well. 5 days ago · I'm trying to update to windows 11. Oct 31, 2025 · Windows 11 version 25H2 is now rolling out to most eligible PCs, bringing security hardening, better battery reporting, and AI-ready components. PC Health check said it was unable to update. ' appears. For example, coinciding with build 22610, a Defender update has fake-positive'd the v7 powershell-based bypass script that has been issue-free skipping requirements for all these 11 dev builds via Windows Update since Dec 10, 2021 (v1 2021. Installation error 0x800f0991 I have already cleared the cache but May 19, 2025 · Fix Windows update, upgrade or install error 0xC1900101, 0x20004, 0x2000C, 0x20017, 0x30018, 0x3000D, 0x4000D, 0x40017, by following these suggestions. Insider Preview Quality Update (26220. It completes the installation process, but after rebooting and making it most of the way, it shows "Undoing changes made to your computer" and boots back to Windows 10. Instructions on how to run the troubleshooter can be found in our guide on how to fix Windows Update getting stuck. It always fails at around 70%, and all Feb 7, 2025 · If the Windows 11 installation has failed with an error code or message, you can follow these troubleshooting steps to fix it. To do so, go to Windows Security > Device security > Core isolation details > Memory integrity. Complete and easy step-by-step guide to resolve it. Begin with the first method to fix the issue, then proceed so on. It’s free, it’s ready & there are a million possibilities stop your computer from upgrading to Windows 11. Causes of 'Windows 11 installation has failed' Error: External hard drives connected to PC. It returns error 0xC1900101 - 0x30017 every time. Encountering the 0xC1900101 0x40021 error during a Windows 11 upgrade can be both confusing and intimidating. 82 TB SSD Samsung SSD 980 PRO 2TB… Nov 22, 2024 · Warning, this is a bit long and rather technical. I am trying to update from Windows Server 2019 standard on our print server to Windows Server Standard 2022, but keep getting the below error: the installation failed in the first_boot phase 0xC1900101 -0x30018 Jan 21, 2023 · 3. Every time it downloads and tries to install it, it always fails during the SECOND_BOOT phase. Nov 26, 2024 · Learn the common Windows 11 installation error codes to resolve the issue or try these simple methods to tackle the problem on your system. Nov 14, 2025 · Learn how to resolve the 'Windows 11 install has failed' error with these four straightforward methods. Sep 16, 2025 · Why Has Windows 11 Installation Failed Multiple possible reasons could prevent you from installing Windows 11 successfully on the computer. Using SetupDiag gives this error in the setup log: Error: SetupDiag reports abrupt down-level failure. Nov 5, 2021 · Kapil Arya 35,401 • Volunteer Moderator 6 Nov 2021, 05:44 Hello, Not sure how you're installing or upgrading to Windows 11. Jul 9, 2025 · This post revolves around the install error 0xc1900101 when installing Windows 11 and explores proven solutions. The errors alternate between the following, though I'm unsure of what makes them switch. Apr 21, 2025 · The newer one updated automatically to 24H2 while the older one has now been through about 30 attempts, always failing with the BSOD error code 0xC1900101 - 0x30017 failed first boot error during boot. 0xC1900101-0x40017 The installation failed in Jul 15, 2024 · So, your Windows 11 installation has failed. In this video, we’ll dive into fixing errors like: 0xC1900101 – 0x20017 0xC1900101 – 0x40021 Windows 11 Version 24H2 Failed to Install Feature Update to Windows 10 Version 22H2 Failed to Aug 19, 2025 · Hello, I am currently encountering the error code "0xC1900101-0x40017" while attempting an in-place update of a Windows 11 Pro installation from 23H2 to 24H2 using the 24H2 ISO. Jan 21, 2023 · 3. 0 GB (31. Nov 16, 2025 · Windows 11 KB5068861 won't install on some PCs due to errors like 0x80070306, 0x800f0983, and 0x800f081f. Feb 23, 2024 · Windows Server 2019 Installation Failed Fixed: We Couldn’t Install Windows Server 2019 Windows Server 2019 Installation Failed Although Windows Server 2025 has come out, some of you still run the old versions of the Server operating system. 0xc1900101 - 0x40021 The installation failed at the SECOND_BOOT phase with an error during SYSPREP… Feb 23, 2024 · I tried installing Windows 11 several times also using ISO but it fails. 0. No too bad considering there are still users of Windows XP and 7. Apr 21, 2025 · Learn all about error 0xc1900101 when installing Windows 11: causes and how to fix it. This guide Nov 29, 2024 · Could not install Windows 11 Your PC has reverted to the state it was in just before you started installing Windows 11. May 22, 2023 · Hello, I have Windows 10 Pro installed on my SSD and cannot get it to update to Windows 11. #1 – Update Device Drivers The major reason that leads to errors like Nov 29, 2024 · Could not install Windows 11 Your PC has reverted to the state it was in just before you started installing Windows 11. Run the Windows Update Troubleshooter Once you have verified compatibility, the next step is to check if a Windows Update component is preventing the upgrade. So I've recently tried to use the very helpful guide on this forum to repair install an update but am still getting the same errors. I had an issue earlier where secure boot and TPM 2 was disabled. 30 GHz Installed RAM 32. Oct 16, 2024 · Therefore, if you are unable to install Windows 11 24H2 update due to error "0XC1900101 – 0x20017: Installation failed in SAFE_OS phase", I suggest you do not update your system yet and wait until Microsoft releases a new version of Windows 11 24H2. Once it gets near 100%, it abruptly closes and only an error dialogue box 'Windows 11 installation has failed. I have tried this with an ISO as well as your edge website to check and verify that I can upgrade to Win 11. Jan 6, 2025 · Hello, my computer running WIndows 11 Insider Preview 23H2 26016. Apr 8, 2025 · The windows 11 update prompt now disappeared from Settings->Windows Update, while Windows Installation Assistant and PC Health Checks still state that the PC is fully compatible. This was recently updated to 23H2 from Windows 10 without any issue so not sure where the Oct 22, 2024 · To fix any 0xC1900101 error on Windows 11 (and 10), you have various troubleshooting steps as it could be a drive, hardware, or driver issue. You can rmore Oct 18, 2024 · Learn how to fix the error code 0xc1900101 that may appear while running Windows 11 Installation Assistant. . The cause of this failure often stems from various reasons, including hardware incompatibility, outdated drivers, or even issues with the hardware itself. I downloaded the latest Win11 version from Microsoft and… Mar 2, 2025 · Since VMware Tools version 12. Here's what you need to know. PC is not Aug 13, 2025 · We couldn't install this update but you can try again (0xc1900101) error can be fixed by removing your antivirus and updating your drivers. Feb 16, 2025 · Inplace upgrade windows 11 failed "0xC1900101 - 0x30018 The installation failed in the FIRST_BOOT phase with an error during SYSPREP_SPECIALIZE operation" May 17, 2025 · 2. Dec 29, 2022 · I'm attempting to upgrade Windows 11 2021H2 Pro to Windows 11 2022 H2 Pro. Dec 11, 2024 · What to do if you meet the “Windows 11 installation has failed” error? This post will show you some tricks to successfully install Windows 11. Are you facing the 0xC1900101 Windows 11 error code? Check out the effective solutions for a successful Windows 11 upgrade or update. There are then two consecutive boot failures then it rolls back to 23H2. If you’ve ever tried to upgrade or clean install Windows and were greeted with this code, you’ve already learned the hard way Dec 13, 2022 · Can't update Windows because of this error? Here's how to fix it. Sep 11, 2025 · Windows 10 to Windows 11 upgrade fails with 0xC1900101 - 0x20017 The installation failed in the SAFE_OS phase Nov 15, 2025 · I am trying to install Windows 11 on my pc but every time I try to, it just completely stops and gives me the error message that it failed and is undoing changes made to my computer. Trying to update to Windows 11 24H2 from my Windows 10 machine. Nov 16, 2025 · Despite that Windows 11 has been working just fine since he was able to fully install Windows 11 Professional edition. May 12, 2023 · How to fix 0xc1900101 during Windows 11 installation easily? Here, both Windows built-in solutions and third-party tools will be given to help you out. Nov 25, 2025 · You may encounter error code 0xC1900101 when upgrading to Windows 11. See some of the most common upgrade and installation errors for Windows 10 and Windows 11, and what you can do to try to fix them. Sep 11, 2025 · The Installation Assistant says "Error 0x1900101 - 0x40017 The installation failed in the SECOND_BOOT phase with an error during BOOT operation". 0xC1900101 – 0x30018. Install via Installation Assistant: If the update is still not installing, consider using the Windows 11 Installation Assistant, which can help you manually upgrade to the latest version. Also get the same error when I try windows update Feature update to Windows 10, version 20H2 has failed multiple times in the same way. Oct 16, 2025 · The Windows Update gives me error "install failed 24h2 0xc1900101". Installation itself starts, run okay but after restarting, system reverts to older version of Windows and I got the following errors: … 3 days ago · I run Windows 11 Insider Review Beta. Jan 10, 2025 · When you see this error, it typically indicates that a driver on your system has failed or is not compatible with the installation of Windows 11. This error is a generic rollback code that often appears during upgrade or installation when the system encounters incompatible drivers, hardware conflicts, or corrupt system files. Jan 29, 2025 · got the restart messge just now, set it off and after the usual reboots etc i got an unexpected "undoing changes made to your computer" message. This guide will show you various methods to resolve install error 0xC1900101. The update downloads, installs but when it reboots it displays a green error message inaccessible_boot_device (screenshot provided). Jul 3, 2025 · Fixing this error ensures a smoother upgrade to new Windows 11 builds, improves system stability, and helps prevent deployment issues in business environments. Last time I tried Windows 11 Installation Assistant, overcome is the same with no visible error. Let us know if this helps! Mar 7, 2023 · I'm trying to install the Windows 11 22H2 update for the umpteenth time. I've tried: uninstalling… Sep 25, 2021 · My three month old Inspiron 7506 2n1 will not install the Windows11 upgrade from Windows 10 Pro. I'm a… Jun 30, 2025 · Has Windows 11 installation failed? Well, there is no sense in shouting. The installation starts, and after a couple restarts, it How To Fix the 0xC1900101 Error on Windows 11 Because the 0xC1900101 error can be caused by a variety of factors, there are a few different things you can try to fix it. Driver conflict or drivers are outdated. 1012 Has stopped updating every time it tries it throws out the error mentioned in the title Feb 21, 2025 · Windows update attempted to install version 24H2 on my Dell Optiplex 5000 and the update failed with error code 0xc1900101. But this issue persisted even when trying to do a fresh install so I have marked the solution for when you get these errors while attempting a fresh install that worked for me. Aug 5, 2025 · To fix 'Installation failed in safe_OS phase' error change your installation settings first and make sure that required services are running. This error can affect both Windows Client and Windows Server editions. I am trying to update from Windows Server 2019 standard on our print server to Windows Server Standard 2022, but keep getting the below error: the installation failed in the first_boot phase 0xC1900101 -0x30018 Create a Windows 11 Installation Media: Use Microsoft’s official tool and a USB flash drive of at least 8GB. 22000. 0xC1900101-0x40017 The installation failed in Jul 9, 2025 · I'm currently on Windows 11 23H2 and has been trying to install 24H2 every time it shows as available through Windows update. Reinstate Necessary Features If you turned off Sandbox, Hyper-V, or other Windows features, re-enable them only if you need them. 5, PVSCSI driver package running on Windows 11 and Windows Server 2022 is different than the one that runs on Windows 8/10 and Windows Server 2012/2016/2019, so if users upgrade VMware Tools to 12. I tried all the options on the Internet 4 days ago · Windows 11 update Install error - 0xc1900101 FredricJLowe Sunday at 8:29 AM Prev 1 2 2 days ago · This involves stopping certain services, renaming folders, and restarting services. I've tried with regular Windows Update as well as using the latest Windows 11 ISO and both failed. 09) So there's a v9 script available to address that transgression Dec 29, 2022 · I'm attempting to upgrade Windows 11 2021H2 Pro to Windows 11 2022 H2 Pro. This step-by-step guide walks you through Jan 1, 2022 · Hello, windows says that my PC can install Windows 11 and that it meets all the requirements and it's true, I checked many times. If you need to repair or create a new recovery partition or having problems with the Windows 11 operating system on your PC, and the usual solutions will not fix it Jul 27, 2025 · Hi, found this site while Googling my issue and decided to reach out here for help. " Oct 18, 2024 · Many users are seeing the "0xc1900101" error code when trying to upgrade to Windows 11 24H2 or those testing it. I recommend you to upgrade via Windows 11 ISO file, see if that works. 2 (such as old laptops with Intel Core 2 Duo CPU) you can either install Windows 10 22H2 64-bit or Windows 11 23H2. Dec 14, 2024 · This is how you can fix Windows 11 installation error 0xc1900101 that you may face while upgrading to Windows 11. Sep 18, 2021 · I have an issue when I try to do an in-place upgrade from Windows Server 2019 to Windows Server 2022. Don't get upset, this guide can help you fix it. Sep 8, 2023 · Learn how to interpret and analyze the log files that are generated during the Windows upgrade process. We’ve set your PC back to the way it was right before you started installing Windows 11/10. Aug 17, 2023 · Fix 0xc1900101 - 0x20004, The installation failed in the safe_OS phase with an error during INSTALL_RECOVERY_ENVIRONMENT operation error. Dec 28, 2024 · I am trying to install the new Windows 11 update from Windows Update, but I keep getting error 0xc1900101 after rebooting. There are three choices of installation media: USB flash drive, ISO file and DVD, I chose to use USB flash drive. Jan 6, 2024 · How To Fix 0xC1900101 Windows 10 Error: There are several ways to go in order to fix 0xC1900101 errors showing up, then carrying out Windows 10 update. This post explores several targeted solutions for the error. The installation starts, and after a couple Aug 12, 2025 · I understand that you've been having persistent problems with Windows Update, and after a successful installation of one update, a new one is failing with error code 0xc1900101. sort of. Jun 8, 2025 · Encountering a Windows 11 installation error? Learn how to fix it with this step-by-step guide. Error 0xc1900101 on Windows 11 Installation Assistant [Guide] System file error or corruption may lead to 0xC1900101 error on Windows update. I have been trying to install this update for the past month. Below is the setup's log files. The method that works the most is updating drivers. Jul 20, 2025 · Hello, I've finally received the 24H2 upgrade after a long time, so I decided to go through with the upgrade. If issue still persists, try making clean install of Windows 11. I've tried restarting PC multiple times, doing clean restart, removing antiviruses, cleaning up storage, deleting Temp… Apr 28, 2025 · A comprehensive guide to solving Windows 11 upgrade/update problems with various solutions with step-by-step instructions. Various issues can impact Windows Update. 80GHz 2. Enable Memory Integrity. These errors are triggered by var 3 days ago · Microsoft has released an out-of-band cumulative update to fix a known issue causing the November 2025 KB5068966 hotpatch update to reinstall on Windows 11 systems repeatedly. The issue has started recently with the Windows Update. The only one thing Windows upgrade manages to show is a popup telling you “Windows 11 installation has failed” after a failure. Apr 8, 2025 · It can be used to create installation media for Windows 11, with the help of which you can bypass the problem of failed online updates and install it directly. 7 GB usable) Storage 1. The result is always this error: 0xC1900101 - 0x30017 The installation failed in the FIRST_BOOT phase with an error during BOOT operation. To fix it, try the troubleshooting steps explained in the post. Let's explore the efficient solutions to fix Jun 30, 2025 · When some users are trying to install the new Windows 11 update from Windows Update, they keep getting error 0xc1900101 and fail to upgrade to Windows 11. Jul 9, 2025 · I'm currently on Windows 11 23H2 and has been trying to install 24H2 every time it shows as available through Windows update. Fortunately the update reverted back to 23H2. If you need to repair or create a new recovery partition or having problems with the Windows 11 operating system on your PC, and the usual solutions will not fix it Jan 29, 2025 · Repair Install Windows 11 with an In-place Upgrade This tutorial will show you how to do a repair install of Windows 11 by performing an in-place upgrade without losing anything. However, in Windows Update it fails and the error 0cx1900101 appears. Beyond the Upgrade: Post-Installation Tips Once you successfully install Windows 11 24H2, there are a few things you can do to optimize performance and reduce potential issues going forward. The Windows Update Troubleshooter automatically detects and repairs many of these common problems. Oct 11, 2024 · Hi, I successfully updated several pcs to 24H2 using inplace upgrade with media creation tool iso and setup /product server method. mva hmur lzjnf jqfe psnru mmmo fmxib hjcc xdpgt ktcw ptkru rsneu nylq uatns rgzw