"Antimalware Doctor" I DIDN'T INSTALL THIS, HOW DO I GET RID OF IT?

First get your internet working by changing the options. (If it's not working) If you are running internet explorer click tools then internet options, then hit the connections tab, and near the bottom click on LAN settings. Uncheck the box that says connect through a proxy, exit out and now your internet should work. Turn off your computer and while rebooting repeatedly hit F8 as fast as you can, until a black screen with multiple options comes up. Use you arrows onb your keyboard to select safe mode with networking. Once you get to the login screen, (Which may take awhile) log into the admin account and open the internet. Go to google and type in malwarebytes. Click the first link and download the program. After it download and updates its database, open up malwarebytes and run a quick scan. Once the scan is finished click remove selected, and reboot your computer. Your computer should work fine now. If you need any additional help along the way leave an additional post and i will help.