Because of the issue with this computer that I am posting about, I am not 100 percent sure which forum to post this in. I will post here in the Internal Hardware, if this is not the correct forum to post this in, please let me know where I should post it.
I am trying to clean up a Dell OptiPlex GX520 with XP SP3, MS UPdates are up to date. which has/had many problems including can not go into Safe Mode by pressing F8, CTRL key, F12. The only F key that I pressed and worked is the F2 key to get into setup.
The computer had a ton of malware/spyware and a couple of Trojans. I could not open up AVG (paid version). I cleaned up what I could with malwarebytes, sypbot search and destroy, glarys utilities SuperAntiSpyware and I still could not open up AVG. I decided to delete AVG and reinstall it however when I tried to delete it through add and remove programs nothing would happen, just like when I clicked on AVG to open it up, so I deleted AVG directory, went into regedit and saved (exported) regedit, deleted all instances of AVG in regedit and rebooted. now the computer keeps on rebooting, I get the dell screen then the Windows XP screen and then it reboots.
I still can not get into Safe Mode, I tried booting from a XP CD after I made sure booting from CD was first in line to boot from and it will not boot to CD. I can boot from the CD on another computer. I made a bootable XP USB thumb drive changed the boot to boot from USB and still I can not boot up. it goes from Dell screen to windows XP screen and reboots.
I took the hard drive out of the computer and was able to copy the data on it to a flash drive, so that I can format the hard drive and start from scratch. however since I can not boot from CD or USB I can not format...
The last thing I did was unplugged the computer, took the battery out for about 10 minutes, replaced it and tried booting up the computer once again... without the cd or usb, then with the cd, then the usb and the computer still continues to reboot.
Does anyone have any other suggestions?
Thanks in advance.