Registry Recycler helps optimize your PC performance, on your own. It deals with a sensitive component of operating system, called Windows Registry. Each activity carried out on your computer is directed through this registry database
Error Code 0×490 indicates bad boot information, which does not let you access Windows 7. In this situation Boot manager is unable to find OS Loader and is stuck at the startup phase. By default or by command, it runs a repair process, which also subsequently fails.
At times, your PC shutdowns automatically while you are working. In fact something in the boot process is crashing the PC. Formerly Windows reacts to the crash by rebooting. Follow this Video tutorial to fix the issue