windows can't check for updates

[Matthew_905]

Vista pc just stuck on checking no result

 

[Benkberg97]

Vista and 7 take an eternity to check for updates. It's just normal behavior. Since Vista hasn't had any service packs since 2009, it could take a while. Just let it run overnight and check back in the morning.

https://support.microsoft.com/en-us/kb/2714434 - Windows update troubleshooter. Try this if it's been checking for over 48 hours.