Do a factory restore on a Inspiron 580 - Dell Inspiron 580 Desktop Computer (Intel CORE I3 530 640GB4GB) (DDCWYB6)

The hard drive may be failing, or just the OS or hard drive corrupted. You could try this... Pull the hard drive out, and use a USB Hard Drive Adapter to connect the hard drive to a friend's computer, and save all the personal files (documents, pictures, etc.) you can to a folder on the friend's computer or an external hard drive.
Then, you could try to do a Factory Restore on the computer, and if that works, copy your personal files back to your newly restored computer.

Good luck.

Just go into the menu and perform a factory reset.

after the factory reset has finished

Resetting a Dell Inspiron to the factory settings allows the user to restore the Dell Inspiron to the original operating condition as if it was just taken out of the box. Dell system includes a restore utility called 'Dell Symantec System Restore' to reset or restore your Dell system to factory setting.

Get the step-by-step how to guide..http://technical-support-squad.blogspot.in/2012/08/dell-inspiron-how-to-factory-reset.html

Resetting a Dell Inspiron to the factory settings allows the user to restore the Dell Inspiron to the original operating condition as if it was just taken out of the box. Dell system includes a restore utility called 'Dell Symantec System Restore' to reset or restore your Dell system to factory setting.

Step 1: Before reset any Dell Inspiron laptop, backup your all important data and programs, otherwise you may lose it. It is recommended to use an external storage device for your entire data backup, so that you couldn't lose it in any sudden occurring issue...

Step 2: Remove any other unnecessary external drive and restart your Dell Inspiron laptop.
Step 3: Press 'F8' key continue until 'Advanced Boot Options' wouldn't be appear.
Step 4: Use your keyboard arrow key to select 'Repair Your Computer' from the list and hit 'Enter'.
Step 5: Now click 'Next' and login as the administrator account.
Step 6: Click 'Dell Factory Image Recovery and Data Safe options', select your language option and click 'Next'.
Step 7: Click the check box 'Yes, reformat hard drive and restore system software to factory condition' and click 'Next' to start Dell Inspiron reset process...

This process will erase all your previous changes that have been made to the Dell Inspiron laptop and reset the configuration settings to factory setting.

Feel free to get technical assistance for all type of Dell laptop at http://www.vtechsquad.com/dell-support/

You will lose all your data if you wanna set it to factory setting ,have its back up before you loose it.

Here is how to restore at Factory Setting..
1: Restart the computer, click Start, click the arrow next to the Lock button, and then click Restart. 2: As restarts, press the F8 key until the 'Advanced Boot Options' ,menu appears on the screen.It should come up before Window logo appears. 3. Press the (Down Arrow) to select Repair Your Computer on the Advanced Boot Options menu, and then press Enter. 4. Specify the language settings that you want, and then click Next. 5. Log in as a user who has administrative credentials, and then click OK. 6. Click Dell Factory Image Restore. 7. In the Dell Factory Image Restore window, click Next. 8. Click to select the check box for Yes, reformat hard drive and restore system software to factory condition. 9. Click Next. The computer is restored to the default factory configuration. 10. When the restore operation is completed, click Finish to restart the computer.

Reboot with the OS CD and try to repair the OS. But much better to use restore CD. Buy one if you have to depending on your OS

you mean bios factory settings?
hit del on start up
and klick f7 it is for optmized seting , or f5 it is for default, sacve to you cmos and that is it

you can try to restore your PC from start<-all programs<-accessories<-system tolls<restore
-Choose the earliest date that your want your PC to restore back to.

Hope it helped

If you have Windows Vista you can press F8 while booting to access the Windows Startup Repair and then select the Factory Image Restor.