Windows 10, Alt+Shift+T bringing up windows snipping tool instead of creating opacity keyframe

[JP-PostMan]

Thanks to Adobe's wonderfully effective and never problematic software, I was unable to update any of my apps until an Adobe rep took over my PC and deleted any trace of Adobe software. In this process I lost all my preferences, and somewhere in those prefs must have been some option to tell windows to give keyboard input priority to Adobe, because now when I'm working in AE and I'd like to make an opacity keyframe, I hit Alt+Shift+T, but instead my curser turns into a target that can be used to draw a window for a screenshot, using either Snipping Tool or Snip & Sketch. I tried simply changing the shortcut for those tools but I can't find those options either

[Justin Taylor-Hyper Brew]

Windows + Shift + S should be the shortcut for the Snipping Tool, not Alt + Shift + T. Are you on Windows 10? Do you have any other programs the modify your keyboard shortcuts or key mappings?

Alternatively, you can change / verify keyboard shortcuts in Edit > Keyboard Shortcuts in AE.

[JP-PostMan]

I have a gaming mouse with macros programmed, but I don't think that's the culprit as it doesn't change any shortcuts, just inputs them for me.

[Justin Taylor-Hyper Brew]

Maybe try launching your computer without the macros software to see if that affects anything.

[Hani ElTiby]

Today I had a problem with the same shortcut, Shift + Alt + T on win 10
I suspected 2 things which changed on my PC today, Windows update and Zoom meeting, the problem was Zoom meeting which was running in the system tray. I closed it and the shortcut is back.