Under Tools/Options/Advanced/General, is Hardware acceleration enabled?

I hear what you're asking. But unfortunately, I can't get that far before it locks up. I even tried reinstalling from the latest release. As soon as it opens up, I lose all control.

Still no workey...

Can you start TB in safe mode (hold Shift when you launch it)? That will disable hw accel., besides other things. If that's not feasible, you may have to roll back the display adapter driver from Device Manager (right-click the Start button to open DM).

Thanks for the suggestion. Safe Mode did not prevent it from freezing. I attempted it with/from both graphics cards. I guess I'll have to revert back to before the update. Thanks!

Soo... after letting is set, frozen, for an unknown amount of time, it's now thawed. I checked, and HW accel is NOT turned on.

It's probably a video driver issue, but just in case it's due to a coincidental update of a security program, check that your ant-virus program is not set to scan the mail folders, as that is the most frequent cause of TB freezes. (Can also be checked by starting in Windows safe mode).

MVX1, are you all sorted out?

Wayne Mery said

MVX1, are you all sorted out?

Negative.

Short term solution, execute the program 15 minutes before I need to use it. Long term solution, fresh WIN7/64 on an SSD, ditch WIN10/64 on conventional HDD.

Shrug... It still freezes throughout the day, but it's better than Outlook (which also freezes frequently).

What anti virus are you using? If defender, does excluding the Thunderbird process help at all?