How to update my windows 11 version 21H2 to a newer version

Hi, I'm Bernard, a fellow Windows user. I'm happy to help!

Certain regions are unable to download the Windows ISO from the website. The internet can also be a factor. Kindly try using a different network. However, if the issue persists, let us proceed to the normal method of troubleshooting by following the steps below:

Reset Windows update components:

Open Terminal (Admin) or Windows PowerShell(Admin) (Press Windows key + X then click Terminal(Admin))

Copy each line of command, then press Enter (one line at a time)

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
regsvr32.exe /s atl.dll
regsvr32.exe /s urlmon.dll
regsvr32.exe /s mshtml.dll
netsh winsock reset
netsh winsock reset proxy
net start bits
net start wuauserv
net start appidsvc
net start cryptsvc

-Once done, restart the device and check.