How To Restore Acer Aspire 5250 Factory Settings

Follow these instructions carefully:

To start the recovery process:
1. Restart the system.
2. While the Acer logo is showing, press <Alt> + <F10> at the same time to
enter the recovery process.
3. Refer to the onscreen instructions to perform system recovery.

I copied the above from an Acer manual, and it works on my own system, which is not the same model as yours. But you must understand that this will basically restore your computer to the condition in which it was when you bought it, unpacked it from the box, and followed the instructions to set up a new computer. 

This will give you your system back as if it were brandy new, but in most cases, anything you created, like DOCs, or XLS files, again … ANYthing you created since buying this computer, will also probably not be there any more.

You will have a pristine, clean as new, computer system.

Be careful, be absolutely sure this is what you want to do, and go ahead and do it.