Turning on windows security..Bad mistake – Microsoft Q&A

Update your network adapter drivers from the PC maker’s Support Downloads web page using the full model number, HP Serial Number or Dell Service Tag on sticker. Compare the latest drivers available for download with the ones presently installed in Device Manager reached by right clicking the Start Menu.

https://answers.microsoft.com/en-us/windows/forum/all/turning-on-windows-securitybad-mistake/682e6d21-fa68-4813-9421-fb4c74701cbc