Windows 7 critical internal error after timezone change

My name's Nick and I was hoping to get help on an issue I'm currently having with my laptop. I was doing a project for school and I needed to know the time in China. So I changed my timezone, and as I closed the window I noticed a pop up window saying something along the lines of "windows has encountered a critical internal error and will restart in one minute, please save your work."

I've tried starting my computer on safe mode w/networking but I get the same error, only safe mode works. I have homework due today, so any help would be greatly appreciated.

Did you change the time zone back to yours and restart? You could try a Windows start up repair after correcting the time zone

Hi, thank you for responding. Yes, that was the first thing I did, It's still giving me the error.

Is the computer's time and date correct?

Yes sir

I tried system restore in safe mode, but it said it failed. But when I chose "repair your computer" from the startup options, I tried system restore from the menu that came up and it completed successfully. So at this point it seems to be running ok. Thank you very much for the help.

Good work... and you are very welcome