This will give you peace of mind and should also fix your problems.
Install Malwarebytes: https
/www.malwarebytes.org/ and update malware definitions in the proram (will see an update function)
Install Spybot Search & Destroy: https
/www.safer-networking.org/ and update malware definitions in the proram (will see an update function)
Install TDSSKiller:
https/support.kaspersky.com/us/viruses/utility and update malware definitions in the proram (will see an update function)
Install Super Anti-SPyware: http
/www.superantispyware.com/ and update malware definitions in the proram (will see an update function)
Once you have all the programs installed boot into safe mode and run TDSS Killer first, this should detect and remove Bootkits and Rootkits. Once you have finished with TDSS Killer, use the other programs to scan and remove hardware, this should remove all other malware.
Once you have ran all these tools in safe mode you should run this repair tool to fix any damage caused by malware:
http/www.tweaking.com/content/page/windows_repair_all_in_one.html
If you like this answer please pick as the solution.
Thanks and good luck.