Hello Lisa, sorry to hear of your computer problems.

Could we see a Spybot-S&D log please so that we can advise you as to the next step.
Spybot-S&D
Open SpyBot, check for and get any updates available, close all browsers, check for problems and fix everything found. Then on the toolbar menu select mode and switch to advanced mode, on the left lower down select tools, and view report, ensure all the options are selected near the bottom except

uncheck[ ] Include a list of services in report.
Uncheck[ ] Include uninstall list in report.

Copy paste the log into this topic.

Make sure you update the program after installing and before scanning. (If you receive a Bad Checksum Error please try another download mirror.)

If you are running an older version of Spybot-S&D.

Spybot-S&D 1.4 Final has been released.
Uninstalling Previous Spybot-S&D
Spybot-S&D Version 1.4 Download

Tutorial

Cheers.