1.  Shut Down the PC and to wait for 3 seconds .
2.  Ignite the PC and Immediately presses the key F8 several times until it leaves a menu.
3.  Select Safe Mode and press Enter key.

Note: Some PCS shows a submenu before, where the system will solicit to him that it specifies the unit that wishes to initiate (diskette, hard disk, CD-ROM). Select "IDE 0" or Hard disk (or it marks), presses Enter and again "F8 quickly" (several times) until it leaves the menu options before indicated.