Suggest you uninstall any programs that you installed the day the problem started and any you installed since.
Then attempt a system restore to a date prior to the problem starting. That is assuming that System Restore was enabled before the problem.
Restore your PC
Whenever you want to return to a Restore Point, open the System Properties dialog box again (see Step 1), click the System Protection tab and then click the System Restore… button. Follow the on-screen instructions and select the desired Restore Point when prompted. You can also click the Scan for affected programs button before going any further, to see what might change on your PC afterwards. When you’re happy to proceed, click Next.