Here's my recommendations re your security applications. You choice whether to follow them or not.
General rule is not to have more than one Anti-virus program & One Anti-spyware program running in memory at once due to conflicts etc.
Keep Avast, WinPatrol, SpywareBlaster.
I would recommend purchasing the licence for Malwarbytes' Anti-Malware real time protection & use that in place of Windows Defender. The licence is not expensive & is a one off payment for lifetime protection. If you don't want to purchase the licence then use Malwarbytes as an On Demand scanner once a week or so. I don't know much about Spyware Doctor but you could use that in place of Defender I suppose. Just so long as you only have one anti-spyware program as a real time scanner & use the others as On Demand then there shouldn't be any issues.
I would recommend getting rid of Spybot Search & Destroy as it is no longer that effective against todays malware.
Is the a-squared you have the free anti-virus+anti-spyware? If so you need to decide whether to keep either Avast or a-squared as you should not have both running at the same time.
We'll do that right now.Should I now also delete all apps and logs from my desktop used during this process eg Old Timer Combofix etc
Now we need to clear out the programs we've been using to clean up your computer, they are not suitable for general malware removal and could cause damage if used inappropriately.
The following will implement some cleanup procedures as well as reset System Restore points:
Click Start > Run then copy/paste the following bolded text into the Run box and click OK:
- Double-click OTM
- Click the CleanUp! button
- Select Yes when the Begin cleanup Process? prompt appears
- If you are prompted to Reboot during the cleanup, select Yes
- The tool will delete itself once it finishes, if not delete it yourself
Any logs that may have been saved to your desktop
You should also remove HijackThis. You can do this by going to C:\Program Files\Trend Micro\HijackThis
- Double click HijackThis.exe
- From the Main menu click Open the Misc Tools section
- Using the scroll bar, scroll down to Uninstall HijackThis
- Click Uninstall HijackThis & exit then click Yes at the prompt
Once this is done you can re-enable any of the security programs that you decide to keep.