Hi paulyjames,
Have you still got the recovery partition [reset to factory]?
Restore Factory Image From The Recovery Partition [Dell Computer]
IMPORTANT: Using the Factory Tools or Backup and Recovery Manager software will restore your computer back to its factory default settings. During this process, it will delete EVERYTHING on the HDD [files, folders, programs, drivers, photos, music etc]. Therefore it is imperative that you backup anything that you want to keep BEFORE you continue.
[01] Power off the computer and remove any attached devices [scanners, printers, external HDD’s, USB’s etc]. If the computer is a desktop, then obviously leave the keyboard and mouse attached.
[02] Boot the computer.
[03] When the Dell logo appears, continually press the F8 key to boot into the Advanced Boot Options menu.
[04] Use the arrow keys to navigate to the Repair Your Computer option, and then press Enter. The System Recovery Options screen will now open.
[05] Select your keyboard layout, and then click Next. The Administrator login prompt will now be displayed.
[06] Login as Administrator [or as a local user with administrative rights], and then click OK.
NOTE: Use the drop down menu to the right of Username: to select the local user or the Administrator account and enter the password for that account. If you have not set up a password on the local user account then leave the password space empty and click OK.
[07] Depending on your model configuration, you will either need to click the Dell Factory Image Restore option, or, click Dell Factory Tools and then click Dell Factory Image Restore from the Dell Factory Tools menu. Click Next. The Confirm Data Deletion screen will now be displayed.
[08] Click the check box for, Yes. Reformat Hard Drive and Restore System Software to Factory Condition., and then click Next.
NOTE: The restore to factory condition process will now begin. When the process is complete [it will take several minutes], a message will appear saying that the process was successful. The OS and factory-installed applications are now in the exact same OOBE [Out Of Box Experience] state as they were when it was brand new.
[09] Click Finish to reboot the computer.
That’s it!