When I launch ComboFix (PC running in normal mode) I get a warning Error “Win32 only” “Incompatible OS. ComboFix only works for workstations with windows 2000 and XP”
Umm running windows 7 64Bit Ultimate.
Duh numpty knew that and then promptly forgot that CF does not run on 64 bit systems
Download avz4.zip from HERE
[*]Unzip it to your desktop to a folder named avz4
[*]Double click on AVZ.exe to run it.
[*]Run an update by clicking the Auto Update button on the Right of the Log window:
http://perplexus.geekstogo.com/avz-update-button.png
[*]Click Start to begin the update
Note: If you recieve an error message, chose a different source, then click Start again
[*] Start AVZ.
[*] Choose from the menu “File” => "Standard scripts " and mark the “Advanced System Analysis with malware removal mode enabled” check box.
http://perplexus.geekstogo.com/avz-standardscripts-asa-removal.png
[*] Click on the “Execute selected scripts”.
[*] Automatic scanning, healing and system check will be executed.
[*] A logfile (avz_sysinfo.htm) will be created and saved in the LOG folder in the AVZ directory as virusinfo_syscure.zip.
[] It is necessary to reboot your machine, because AVZ might disturb some program operations (like antiviruses and firewall) during the system scan.
[] All applications will work properly after the system restart.
When restarted
[*] Start AVZ.
[*] Choose from the menu “File” => “Standard scripts " and mark the “Advanced System Analysis” check box.
http://perplexus.geekstogo.com/avz-standardscripts-asa.png
[*] Click on the “Execute selected scripts”.
[*] A system check will be automatically performed, and the created logfile (avz_sysinfo.htm) will be saved in the LOG folder in the AVZ directory as virusinfo_syscheck.zip.
[b]As they are zipped files virusinfo_syscure.zip and virusinfo_syscheck.zip upload to Mediafire and post the sharing link.
[/b]
Scans completed and files uploaded…
http://www.mediafire.com/file/0tyuyimmzk1/virusinfo_syscheck.zip
http://www.mediafire.com/file/nktz3inznzd/virusinfo_syscure.zip
Quite a lot of info in there…
AVZ was suspicious of writelog - is it a programme you installed ?
Apart from that there was no evident malware - is your system still running slow ?
WriteLog is OK 
It has a module to collect data from some live servers while the app is running to keep you up to date with who is active within your area of interest (Radio Hams)
Looks like its all been cleared up then ???
Well none of my tools show any malware
Thanks EssexBox for all your help. PC is running sweet again now.
Hopefully this topic will guide others through this problem.
To remove my rubbish - run OTL and hit the cleanup button, for AVZ just delete the folder