Microsoft has been preparing Windows 7 and Windows 8.1 PCs for a more aggressive Windows 10 upgrade strategy that the company will kick off shortly, according to the developer of a tool that blocks such upgrades.
"Over Thanksgiving weekend I started getting reports that the Windows Update 'AllowOSUpgrade' setting was getting flipped back on on a number of peoples' PCs, and it keeps re-setting itself at least once a day if they switch it back off," said Josh Mayfield, the software engineer who created GWX Control Panel.