Error code 800700C1 when trying to install Vista SP1
Hello,
I am completely new as a member to TechArena although I have read some threads here before and find it a useful site. The reason I registered is because I am having problems installing the new service pack 1 for Vista.
This code 800700C1 appears any time Windows Updates tries to download the installation file. This same error will also appear when I try and install the SP1 from the standalone installation package.
I have been in email contact with a Microsoft technician for the last few days and he has been giving me lots of different action plans with no success. Things like; installing in safe mode, uninstall antivirus software, disable startup items, sfc/scannow as well as host of other ideas.
I receive the exact same update fail and error code (800700C1) when trying to download and install one other update - KB905866 Windows Mail Junk E-mail Filter. As I said, every other update works fine except for the Windows Mail and Service Pack update, which fail in the same way. I don't know if these have any relation but I thought it could be useful to mention.
I am reluctant to completely re-install my OS which I think, will resolve my problem.
I hope to hear form someone soon who may have the answers to my problem. Thanks in advance.
Karl.
