In a case of who’s watching the watcher, it appears a malware package designed to keep your PC working well may be the reason why it’s failing.
Windows 7 users are reporting that their PCs are freezing and otherwise not responding to mouse and keyboard input, with the only option being a hard reboot.
The software at fault appears to be the latest version of Malwarebytes, version 3.6.1 CU 1.0.508, with the issue arising after the software automatically updates, starting a few weeks ago.
Not all Windows 7 users are affected, with Malwarebytes asking users in their support forum to submit logs.
In the meantime, if you are affected the only option is to uninstall the software, download an earlier version and disable automatic updates at Malwarebytes > Settings > Application, turn off ‘Automatically download and install application component updates’ under ‘Application Updates’.
Of course, once the issue is resolved it would be important to re-enable automatic updates again at the same location.