|There are a few things that you can try.|
Turn on the PC & tap F8 until the menus appears. Choose last known good config or safe mode with networking. If you can get into one of those, download, install, update & run anti malware from malwarebytes.org
Run msconfig, go to the startup tab, disable all, click apply, ok, reboot & click ok again.
At last resort, try F11 to access the recovery partition. All saved files will be lost if you don't have them backed up. I'm sure that all your backups are in place, right?
How do you know when a politician is lying? His mouth is moving.