Microsoft may have officially ended support for Windows 7 on January 14, 2020, but it seems the operating system (OS) is the company’s bad penny—Microsoft just can’t get away from it.

No sooner did Microsoft announce that Windows 7 was end-of-life (EOL), than the company had to address a bug wherein a “desktop wallpaper might display as black when set to Stretch.” Now, a more serious bug is affecting Windows 7 users, according to Engadget.

This latest issue is preventing some users from being able to shut down their PC or reboot it properly. Instead, users are receiving an error saying they don’t have permission to shut down the computer. BleepingComputer says some users have had success with a couple of different troubleshooting options, including disabling Adobe’s Windows services.

Ultimately, however, no one knows for sure whether it is a third-party bug, or an issue with Windows 7 itself. If it is a Windows bug, Microsoft may find itself breathing new life into its EOL OS with yet another update.