
Seems like your Documents folder is being placed in OneDrive and permanently synchronized. Even updating to the version you quoted 18.0.2.3255 will most probably not solve the problem. So before you update, change the location of your Documents folder and move it out from OneDrive.
_________________________________________________________
When asking for help here, please be as accurate as possible. Please always remember to give the exact version of product used and all possible error messages received. The better you describe your problem, the better help you will get.
Want to learn more about Trados Studio? Visit the Community Hub. Have a good idea to make Trados Studio better? Publish it here.