Windows could not search for new updates
An error occurred while checking for new updates for your computer.
Error(s) found: Code 800B0001 Windows Update encountered an unknown error.
To fix the above issue there is an update for Windows Server Update Services 3.0 Service Pack 2 is available. Download it from below link.
You may get below windows update error with WSUS 3 SP2.
And run the setup file…
Check for updates again..