Solved Windows Update Error 80070490

saladtoss6

New Member
My OS is Vista Home Premium SP2 32bit. Windows Update hasn't been able to search for updates for a while and gives error code 80070490. I have run System Update Readiness Tool, SFC, and SFCFix and used the log file info to fix some errors, but not all. CheckSUR log shows 25 CBS Registry Errors and one last unavailable repair .manifest file that I haven't been able to find. Any help would truly be appreciated!

Log files:
View attachment 29062
View attachment 29063
View attachment 29064
View attachment 29065
 
Last edited:

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I found a SP2 slipstreamed reinstall ISO here and was finally able to do an upgrade reinstall, which replaces your system files while keeping your programs and personal files. This fixed the corruptions that were preventing me from searching for and installing updates. I had about 220 updates to install after this, and installed about 10 at a time. They all installed except IE9 with error 9C41, which I fixed by uninstalling firefox, setting IE as the default browser, and then reinstalling firefox. Updates are all installed now and windows update is working normally!
 

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