1. Close any open browsers.
2. Close/disable all anti virus and anti malware programs so they do not interfere with the running of ComboFix.
3. Open notepad and copy/paste the text in the quotebox below into it:
Save this as CFScript.txt, in the same location as ComboFix.exe
Refering to the picture above, drag CFScript into ComboFix.exe
When finished, it shall produce a log for you at C:\ComboFix.txt which I shall require in your next reply.
Note: Do not mouseclick combofix's window whilst it's running. That may cause it to stall.
Please include the newly-created C:\ComboFix.txt in your next reply, and let me know how things are running now