I just installed Windows 7 Home Premium 64bit over the original XP Pro on a fully maintained Dell 490. After installing all the Windows Updates recommend, only one remains; Windows 7 Service Pack 1. Installation runs to 25% then fails and reports a Windows
Update Error 800B0100. I have run the System Readiness tool and it re-installed KB947821 but again Service Pack 1 installation fails at 25% with a Windows Update Error 800B0100. Any Ideas?
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1. Do you have backups of ALL the changes CCleaner's Registry Cleaner has EVER made to your computer since you did the clean install of Win7 64-bit (on the computer where WinXP 32-bit had been installed)?
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