Bad data in imatest.ini please remove error parsing the file for keys

Hello experts,
Recently I made some changes in my Windows hoping my PC will run better and I will get better performances. It worked fine for two days when this morning I got this error. I press OK and this error appear again and again. I did some researches on the Internet I found nothing. Can anyone help me to fix this please without reinstalling my Windows? Can this be solved without losing any data?
Thank you!

Bad data in imatest.ini. Please remove.
Error parsing the file for keys:
C:UsersNormanAppDataRoaminglmatestimatest.ini: Error using ==> infile>findkeys at 508
unknown string found at line 2
The bad line Flagged above was detected in imatest.ini.
Please edit and remove it. The editor will open after you press OK.
OK
