Hi, and thanks for reaching out. My name is Bernard a Windows fan like you. I'll be happy to help you out today.
I understand the issue you have, there is nothing to worry I am here to help, after you restart the PC, it is still stuck on undoing changes? if yes, kindly follow the steps below:
First, we need to go to Windows recovery mode and try the options there:
Restart the device 3-5 times until I reach Windows recovery mode, wherein you have the option to select Continue, Troubleshoot, or Exit.
Or try to Press and hold the Shift key while continuously pressing F8 while starting the PC
Then on Windows Recovery:
Do system Restore:
Click Troubleshoot> Advanced options> System restore - Follow the prompt and choose the date when it was working fine.
Let me know how it goes and I hope that helps.
Bernard