Answer Best answer as chosen by user waring25
You say you "got a virus" but ...
the few symptoms you tell indicate a probable hardware fault.
Your Event logs (look at them using your Event Viewer) will likely tell you what caused the reboot (system and application logs).
MalwareBytes scanning is a good idea BUT while it will find some types of malware it doesn't locate viruses (that is why you should have a resident Anti Virus application such as Avast, AVG, McAfee, Norton, etc.). A virus scan is necessary to identify any supposed virus and you didn't indicate what if anything Mal3wareBytes found.
You mention doing a system restore but some Word documents you had on your desktop are "gone". This is normal if the documents were not there at the time the restore point was created. You just need to locate them (search the computer for the files) then move them or create shortcuts to them on the existing desktop.
Follow Carol's advice to use the online virus scanner then download RKILL http://www.bleepingcomputer.com/download/anti-virus/rkill
Boot to SAFE MODE then run RKILL (kills potential malware processes) and after it completes run MalwareBytes while still in SAFE MODE. Then let us know what is found and what you did about what you found. Also let us know what problems your system and application event logs show.
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