Hi, I'm using the Windows 7 RC so not sure if this is the right forum for it. Everything has been fine for ages but recently my internet went down but it's up again (was a problem with the line). However I can no longer use windows update. When searching for updates I get an error 8007273D - Windows Update encountered an unknown error. Also, I cannot sign into Windows Live MSN, I also get an unknown error. It's strange because I can use Skype and Gtalk fine and my internet works with games/browsing etc. I also have problems with the game Mass Effect. When starting up it requires a connection to the internet to validate ownership but it cannot find an internet connection. But I think that's unrelated. So it seems like some sort of problem connecting to the windows servers if there's such a thing. My real copy of W7 should be arriving soon but I'd like to sort this out if I can. Any ideas? Oh yeah I can't reinstall MSN either, it crashes with error 'OnCatalogResult: 0x8007273D' which is the same code as the windows update error - there is little support that points towards the specific cause of this error.