Windows 11 Update KB5063060 Not Installing Install Error 0x800f0991 FIX
The Windows 11 Update KB5063060 not installing with error code 0x800f0991 typically points to corrupted system components or missing dependencies required by the update. Here's a breakdown of the most common causes behind this error:1. Corrupted System Files or Windows Component Store
The update relies on clean, intact system files.
If the Component Store (WinSxS folder) is corrupted, the system may not be able to apply the update correctly, triggering 0x800f0991.
2. Missing Servicing Stack or Prerequisite Updates
Windows updates are layered. If you're missing a required previous update or the latest Servicing Stack Update (SSU), KB5063060 may fail to install.
3. Corrupt Windows Update Cache
Damaged or partially downloaded update files in the SoftwareDistribution folder can block installation and throw this error.
4. Disabled or Misconfigured Windows Services
If key services like Windows Update, TrustedInstaller, or Background Intelligent Transfer Service (BITS) are not running, the update process can break.
5. Third-Party Software Conflicts
Overly aggressive antivirus tools or system optimizers might interfere with system-level changes during update installation.
6. Low Disk Space or Storage Issues
The update can fail if there’s not enough free disk space or if there are bad sectors on your drive.
Link: https://www.microsoft.com/en-us/software-download/windows11
This troubleshooting guide will work Windows 11 operating systems (Home, Professional, Enterprise, Education) and desktops, laptops, tables and computers manufactured by the following brands: Asus, Dell, HP, MSI, Alienware, MSI, Toshiba, Acer, Lenovo, razer, huawei, dynabook, LG , vaio, Microsoft Surface among others.
Copy and paste this:
net stop bits
net stop wuauserv
net stop appidsvc
net stop cryptsvc
Del "%ALLUSERSPROFILE%\Application Data\Microsoft\Network\Downloader\*.*"
rmdir %systemroot%\SoftwareDistribution /S /Q
rmdir %systemroot%\system32\catroot2 /S /Q
sc.exe sdset bits D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;BA)(A;;CCLCSWLOCRRC;;;AU)(A;;CCLCSWRPWPDTLOCRRC;;;PU)
sc.exe sdset wuauserv D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;BA)(A;;CCLCSWLOCRRC;;;AU)(A;;CCLCSWRPWPDTLOCRRC;;;PU)
cd /d %windir%\system32
regsvr32.exe /s atl.dll
regsvr32.exe /s urlmon.dll
regsvr32.exe /s mshtml.dll
regsvr32.exe /s shdocvw.dll
regsvr32.exe /s browseui.dll
regsvr32.exe /s jscript.dll
regsvr32.exe /s vbscript.dll
regsvr32.exe /s scrrun.dll
regsvr32.exe /s msxml.dll
regsvr32.exe /s msxml3.dll
regsvr32.exe /s msxml6.dll
regsvr32.exe /s actxprxy.dll
regsvr32.exe /s softpub.dll
regsvr32.exe /s wintrust.dll
regsvr32.exe /s dssenh.dll
regsvr32.exe /s rsaenh.dll
regsvr32.exe /s gpkcsp.dll
regsvr32.exe /s sccbase.dll
regsvr32.exe /s slbcsp.dll
regsvr32.exe /s cryptdlg.dll
regsvr32.exe /s oleaut32.dll
regsvr32.exe /s ole32.dll
regsvr32.exe /s shell32.dll
regsvr32.exe /s initpki.dll
regsvr32.exe /s wuapi.dll
regsvr32.exe /s wuaueng.dll
regsvr32.exe /s wuaueng1.dll
regsvr32.exe /s wucltui.dll
regsvr32.exe /s wups.dll
regsvr32.exe /s wups2.dll
regsvr32.exe /s wuweb.dll
regsvr32.exe /s qmgr.dll
regsvr32.exe /s qmgrprxy.dll
regsvr32.exe /s wucltux.dll
regsvr32.exe /s muweb.dll
regsvr32.exe /s wuwebv.dll
netsh winsock reset
netsh winsock reset proxy
net start bits
net start wuauserv
net start appidsvc
net start cryptsvc
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》 CHAPTERS 《
00:00 Intro
00:20 Solution #1
01:59 Solution #2
04:13 Solution #3
05:15 Solution #4
09:23 Outro Receive SMS online on sms24.me
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