Fixing Windows Activation Error 0x80072F8F on Windows Vista. Fix Date/Time on clock.

When trying to activate my Windows Vista installation recently, I was receiving an error code 0x80072F8F. My computer&cmos battery is old and so when I unplugged my computer it caused my bios date to get messed up. To fix this activation error, all you have to do is update the time/date to the correct time/date on the date indicator at the bottom right of the task bar. That&it... once this is done you can try to re-activate. In my test, I didn&have to reboot my machine luckily.