Please remove AVG Antivirus
Please remove McAfee Antivirus
Please remove Ad-Aware
All through Add\Remove programs
Then restart (without Antivirus)
Start up MalwareBytes again
Go to 3rd tab, and update it
Then back to 1st Tab, and run, another, full scan (ie more infections to be removed)
Save the log file (remembering to remove all found Malwares first)
Then download
Avira free Antivirus
Update it (part of install anyway)
Run a full scan
Then report back with how much better it is
Please note: presently you have a number of infections shown in HJT log
Once the above process is complete, you will need to supply a better HJT log
Edit:
In respect to adu123's reply
in future please let us know what's happening
including Hardware details etc