Marlettie, I have a suggestion for you. Download and run Malwarebytes (it's free, be sure to update it, and do a full scan). Stay away from such programs as Advanced System Care & RegCure. They are of little good to anyone, and have been known to cause damage to the system. Run a decent anti-virus program, if you can't pay, or don't want to, Microsoft Security Essentials (MSE) & Avast 5.0 are both good ones that's free. Keep Malwarebytes, update and run it monthly, these programs keep viruses and malware out of your system fairly well, although no AV (free or paid) is 100% correct everytime. Get rid of Revo Uninstaller now, if you haven't already. Should you need any further assistance, feel free to post back anytime, there's usually help around here somewhere. Best of luck to you.