Recover Data from Dell Desktop PC keeps on restarting

My Dell Desktop PC keeps on restarting, it goes on to display Windows XP logo but crashes and restarts, should I restore the windows?

Doing a restore may overwrite your current data, bad sectors or logical corruption often causes the hard disk to behave in such manner. To avoid any further damage please turn off your computer and send us the hard drive for a free evaluation no obligation quote.

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