Pc starting over and over

[Devil360]

Hello guys,
There is a problem with my pc that is the pc starts over and over its not even loading the windows screen it just keep restarting when i run the diagnostics it says there is an error with the hard drive now all i want to do is to secure my data any suggestions will be appreciated

 

[Chicano]

Run a check disk scan (and disk sector repair) from the Window Insdtallation Disk
Instructions are provided for all Windows versions from XP to Windows 8.1... and instructions for Win 8.1 should apply to Windows 10

Run Check Disk from the Windows installation disc
https://neosmart.net/wiki/chkdsk/#From_the_installation_disc-3


Windows 7 & Vista - Running Checkdisk from a Boot CD/DVD or Windows Desktop
Running Checkdisk from the Windows CD
https://kb.wisc.edu/page.php?id=6565