Solved: Windows Ten Version 21H1 Installation Fault 0X80070020

Microsoft has started the Rollout process of  Windows 10 May 2021 Update version 21H1  for everyone for free. It means every compatible device installed windows 10 latest version will receive the Windows 10 version 21H1  via windows update. Or you can get downloaded by manually checking for updates from settings -> update & security -> windows update -> check for updates. The overall Upgrade process is easier But for few users,  Windows 10 21H1 update failed to install for Unknown Reasons. Users report Feature update to Windows 10 version 21H1 – error 0x80070020, Some Others Windows 10 21H1 update stuck downloading for hours. Most of the time’s windows update fails to install due to corrupt  Windows Update cache , outdated and incompatible driver software, installed programs (Such as anti-virus program, or malware) interfering with the Windows Update process. Also, it could be due to missing, corrupted files in the system etc. Whatever the reason here some solutions you may apply to upgrade install windows 10 version 21H1  smoothly without any errors. Windows 10 21H1 update error 0x80070020 First of all, make sure you have enough disk space to download the updates ( minimum 20 GB Free Disk Space ) Or you can run the Disk Cleanup tool to free up C: ( system installed )Drive. Next, make sure you have a Good and stable internet connection to download the latest windows update files from the Microsoft server. Press Windows + R, type appwiz.cpl and ok to open programs & features window. Here uninstall security software (antivirus) if installed on your system. Start windows into clean boot state and check for updates, Which may fix the problem if any third-party application, service causing the windows update stuck. Open Settings -> Time & Language -> Select Region & Language from options on left. Here Verify your  Country/Region is correct  from the drop-down list. Restart the Windows Update Services:  Open the Service Manager and ensure that they are Started and their Startup type is as follows: Background Intelligent Transfer Service: Manual Cryptographic Service: Automatic Windows Update Service: Manual (Triggered) Run windows update Troubleshooter Run the windows update troubleshooter and let windows to detect and fix the problems prevent the windows 10 21H1 update to install. Press Windows + I to open the settings app, Click on Update & security then Troubleshoot, Then select windows update and  Run The Troubleshooter.  The windows update troubleshooter will run and attempt to identify if any problems exist which prevent your computer from downloading and installing Windows Updates. After complete, the process Restart windows and again manually Check for Updates. Reset windows update components If the windows update storage folder (Software distribution folder) Get corrupted, Contains any buggy updates this will cause Windows Update to stuck downloading at any percentage. Or Cause features update to Windows 10 version 1809 failed to install. And Clearing the folder where all of the update files are stored will force Windows Update to download afresh. Which fix most of the windows update related problems. Here follow the steps below to reset windows update components. Press Windows + R, type services.msc and ok, On the services console window right click and stop windows update, BITS, and Superfetch service. Then Go to C:\Windows\SoftwareDistribution\Download Here delete everything within the folder, but do not delete the folder itself. To do so, press CTRL + A  to select everything and then press Delete to remove the files. Now navigate to  C:\Windows\System32 Here rename the cartoot2 folder as cartoot2.bak. That’s all Now Restart the services ( windows update, BITs, Superfetch ) which you previously stopped. Restart windows and again check for updates from settings -> update & security -> windows update. Hope this fourth dimension your organisation successfully upgrade to windows ten version 21H1 without whatsoever stuck or update installation fault. Make sure Installed Device Drivers Are Updated Also, Make Sure All Installed  Device Drivers Are Updated  as well as compatible amongst the current windows version. Especially Display Driver, Network Adapter, too Audio Sound Driver. Outdated Display driver by and large causes update error  0xc1900101,  Network Adapter causes unstable cyberspace connectedness which fails to download update files from the Microsoft server. And the outdated Audio driver causes update mistake 0x8007001f. That’second why we recommend bank check and update device driver alongside the latest version. Run SFC and DISM command Also Run the system file checker utility to brand certain whatever corrupted, missing organisation files non causing the upshot. To do this open up the control prompt equally administrator, type sfc /scannow together with hitting the come in primal. This volition scan the system for missing corrupted system files if institute whatsoever the utility Automatically restore them from %WinDir%\System32\dllcache . Wait until 100% complete the process After that restart windows too bank check for updates. Use the Media Creation Tool If all the to a higher place options failed to install the windows 10 May 2021 update, Causing different mistake so purpose the official media creation tool to upgrade windows 10 version 21H1 without any fault or problem. Download the Media Creation Tool from the Microsoft back up website. Double-click the file to offset the process. Follow on-screen instructions. Select Upgrade this PC straightaway option. And follow on-covert instructions Using Windows 10 Update Assistant Also, you tin purpose the  Windows ten Update Assistant to become it like a shot! Once downloaded, y'all tin can operate it to get the installation of the Windows 10 version 21H1 update. When y'all click update now assistant volition perform basic checks on your PC hardware as well as configuration. And start the download process subsequently x seconds, assuming everything looks skilful. After verifying the download, the assistant volition commencement preparing the update procedure automatically. The assistant volition automatically restart your computer subsequently a thirty-minute countdown (the actual installation can have upward to ninety minutes). Click the “Restart straightaway” button at the bottom correct to outset it instantly or the “Restart later on” link at the bottom left to delay it. After your calculator restarts (a few times), Windows x will go through the terminal steps to finish installing the update. Did the solutions cite hither assistance you lot? Or even so, accept problems amongst the windows ten May 2021 update installation? Share your feedback on comments. Also, Read iTunes Not Working on Windows 10? Here the solutions to apply How To Fix 100% Disk Usage on Windows ten version 21H1