Forum Discussion
ZippZayz
Jul 31, 2025Iron Contributor
Windows 11 error: The installation failed in the SAFE_OS phase with an error during BOOT operation
Not a tech savvy and seek help from this Microsoft tech community. My pc keeps getting this error during the installation process when I was trying to upgrade my PC to Windows 11. The installation ...
Americaaman
Jul 31, 2025Iron Contributor
If your Windows 11 installation fails during the SAFE_OS phase, corrupted update files could be the culprit. Windows Update relies on cached files to install updates, and if these files are damaged or incomplete, the upgrade process may fail. To resolve this, we’ll clear the Windows Update cache, forcing Windows to download fresh update files. This method is particularly useful if you’re encountering errors during an upgrade via Windows Update.
Follow the steps below to reset the Windows Update components and remove corrupted files.
net stop wuauserv
net stop bits
net stop cryptsvc
ren C:\Windows\SoftwareDistribution SoftwareDistribution.old
ren C:\Windows\System32\catroot2 catroot2.old
net start wuauserv
net start bits
net start cryptsvc
This is a very effect approach to fix "The installation failed in the SAFE_OS phase with an error during BOOT operation." error during Windows 11 upgrade!