I have a Dell Latitude D610 & I got it in 2005. Its running under Windows XP service pack 3 & I do not have any of the discs that it came with.I recently got a security update that I had about 15 corrupt files on the laptop, when I went to check what they where I noticed I had to reactivate/buy the licence for the security software so I thought I would remove this security software that was on it & replace it with the free version of AVG that I use on my personal computer.I could not remove the security software which I think is Microsoft owned so I tried to install the AVG software anyway. The Laptop would not download AVG completely so I attempted to remove the files manually that were corrupt.Now realising that this was a mistake because my laptop will turn on, show the DELL page & then all I see is a black/grey screen, with no errors or messages. I have tried <F2> & this brings me to the Blue & grey setup page, it has a list of folders as follows which most have a list of subfolders:SystemOnboard DevicesVideoSecurityPower ManagementMaintenanceDockingPOST BehaviorWireless I have tried <F12> & I can see the Black & white boot options page which reads:Use the up- and down- arrow keys to move the pointer to the desired boot device. Press [Enter] to attempt the boot or ESC to Cancel.Internal HDDCD/DVD/CD-RW DriveCard bus NICOnboard NICBIOS SetupDiagnostics I have tried <F8> & I can see the Black & white advanced options menu page which reads:Windows Advanced Options MenuPlease select an option:Safe ModeSafe Mode with NetworkingSafe Mode with Command PromptEnable Boot LoggingEnable VGA ModeLast Known Good Configuration (your most recent settings that worked)Directory Services Restore Mode (Windows controllers only)Debugging ModeDisable automatic restart on system failureStart Windows NormallyRebootReturn to OS Choices MenuUse the up and down arrow keys to move to the highlight to your choice(None of these options work for me) I have also triedpressing and holding <Ctrl> and then pressing <F11>. Then, releasing both keys at the same time. This does nothing, I thought it would allow me to do a restore on the laptop.Any advice would be great??1 person got this answerI do too