Computer disfunctioning after update

I used manufactured sent factory recovery USB then ran all windows updates, all system functions operated find and lastly I ran 800mg windows update then restarted computer. Now windows defender says “this app has been tuned off and isn’t monitoring your computer, mouse is hard to control, start up has a long delay before starting (tried 4 times) on my windows 8.1 system. Has this happened to anyone else to tell me how to fix this.



Updates that are not installed properly can cause multiple issues to your computer. Since the concern happened after installing the updates, we recommend restoring your computer to its previous point using System Restore.

  1. Press Windows key + R to open Run command.
  2. Type rstrui.exe
  3. Follow the on-screen instructions.

Let us know the result of the System Restore.


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