if not already done, check your computer with this
Malwarebytes Anti-Malware 1.51. http://filehippo.com/download_malwarebytes_anti_malware/
always click the update button so you have the latest signatures before you scan
click on the remove selected button to quarantine anything found
post the scan log here
also download aswMBR.exe and save to desktop http://public.avast.com/~gmerek/aswMBR.exe
- click the aswMBR icon to run and then click scan
- click save log and post it here in your next reply