Hi there and welcome
Can you tell me the version of windows you are using?
and when exactly did this problem start?
ok, I want to do a system restore please to undo any corruption caused
To do this, close all programs.
Press the windows key + X and click on Control Panel
click System and Security
Then click on System
Then System Protection
Then System restore
Choose a date before this problem occurred.
Let it complete and tell me if it now functions correctly please