Boot into Safe Mode with Networking, backup any of your files you can't live without to a USB HDD or USB Flash Drive.
Due to Forum Rules we cannot assist you with Malware removal. Please click on the link for Virus/Malware Help in my signature. Try to do as many of those steps as possible and skip those you can't. Then post there for more help.
Due to Forum Rules we cannot assist you with Malware removal. Please click on the link for Virus/Malware Help in my signature. Try to do as many of those steps as possible and skip those you can't. Then post there for more help.