You have hacked or infected files on your computer.
Check your BCD and do the below fix if necessary (at your own risk)
In Windows open CMD as Administrator and type BCDEdit and enter, if your Windows Boot Loader Path is xOsload.exe then you need to remove some files and repair your BCD.
NOTE: you will need to re-activate Windows afterwards, so make sure you have your Windows 7 key handy.
Boot to Windows Repair - Command
Del D:\Windows\System32\xOsload.exe
Del D:\Windows\System32\xNtKrnl.exe
Del D:\Windows\System32\Drivers\oem-drv64.sys
attrib c:\boot\bcd -h -r -s
ren c:\boot\bcd bcd.old
bootrec /rebuildbcd
, clicking
Control Panel, clicking System and Security, and then clicking
Backup and Restore.
If you're prompted for an administrator password or confirmation, type the password or provide confirmation.