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It's not available in v4.5.9.2. I've just released v4.5.9.3, please try it.
I don't have update checking on
That's unexpected. So you disabled update checking, and you still experience crashes? Could you post a crash report?
Implemented in 7+ Taskbar Tweaker v4.5.5.5 beta.
I believe that it's an issue with the MinHook library, which was fixed in the beta version (v4.5.5.2). Please try it, and let me know if you encounter similar errors with it.
Please provide more information, so I'll be able to reproduce the issue:
  • Your Windows version.
  • Your tweaker options (advanced options too, if you're using any).
  • Your taskbar properties.
Also, could you try other versions, and see when the issue started happening?
Here are old versions of the tweaker (no need to do system restore):
https://www.dropbox.com/sh/mcbychsh0xc1dvu/8-Lj2sg...
Perhaps it has nothing to do with the tweaker, and system restore fixed something else.
Here's what I know about the issue:
* It seems to happen only on Windows 7, according to the reports.
* It's related to the networking activity of the update checking. Turning update checking off seems to fix the issue.
* The issue seems to show up when the PC runs for a long time without restarts.

Unfortunately, I wasn't able to find a way to reproduce the crash reliably. Also, stack traces don't provide enough information, as the crash happens in a system module.