Welcome to DAL,
You appear to be running two anti-virus programs and could possibly be part of the problem so suggest you remove one of them.
Do you know what this is below?
O4 - HKLM\..\Run: [FlashInstaller] D:\flashstart.exe D:\D:\D:\start.exe run
Download Clean.bat to your desktop(Save page as or Save as): for later use to clean out your TEMPORARY and PREFETCH files.
http://www.thatcomputerguy.us/downloads/clean.bat
Run hijackthis and click on scan and put checks next to these:
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Bar = http://uk.red.clientapps.yahoo.com/...fo/bt_side.html
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Search Page = http://uk.red.clientapps.yahoo.com/...arch.yahoo.com/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Default_Search_URL = http://uk.red.clientapps.yahoo.com/...arch.yahoo.com/
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Bar = http://uk.red.clientapps.yahoo.com/...fo/bt_side.html
R1 - HKLM\Software\Microsoft\Internet Explorer\Main,Search Page = http://uk.red.clientapps.yahoo.com/...arch.yahoo.com/
R1 - HKCU\Software\Microsoft\Internet Explorer\SearchURL,(Default) = http://uk.red.clientapps.yahoo.com/...arch.yahoo.com/
O4 - HKLM\..\Run: [Alcmtr] ALCMTR.EXE
Make sure nothing is open but hijackthis and click on "fix checked".
Now reboot into safe mode by
tapping your F8 key upon restart and safe mode screen appears, select safe mode and press enter.
Navigate to these files or folders using Windows Explorer (OR Start -> Search) and delete (if present):
DELETE FILES:
ALCMTR.EXE
Now run that
clean batch file you created earlier, type in
'Y' a couple of times and
press enter each time you type in "Y" until black box disappears.
Then:
Go to Start > Run and type:
CLEANMGR.EXE and hit enter.
When prompted select the C: drive and click ok.
Check the boxes for:
Temporary Internet Files
Downloaded Program Files
Recycle Bin
Temporary Files
Click OK or Enter
Reboot and come back and tell me how it is running now. Thanks.