Microsoft confirmed that the company is aware of activation issues on some systems. The problem appeared shortly after Microsoft blocked old Windows 7 and 8 keys from activating Windows 10 and 11.

Windows Activation Error 0x80070520 is one of the many Activation errors users encounter while switching to a new laptop or PC or upgrading to a newer version of ...

Microsoft closed a Windows 7 / 8 key loophole last month, and now people are experiencing issues reactivating some Windows 10 / 11 installs. Microsoft closed a Windows 7 / 8 key loophole last month, ...

Ugh this kinda sucks but I guess it doesn't really matter. I had a bunch of Windows 7 keys from 2009 that have been great with 10 and 11. I get that this free ride is over but it still sucks. It ...