Windows 7 repair from bootable usb
These tools, grouped as System Recovery Options, can help you recover the Windows system from errors or restore your computer to a previous restore point.
System Recovery Options contains the following tools available:
#Startup Repair. Startup Repair automatically scans your hard disk for errors and tries to fix the errors.
#System Restore. System Restore can restore your computer to a previous restore point, if System Restore was enabled and a restore point was created.
#Complete PC Restore or System Image Recovery. Complete PC Restore is available for Windows Vista systems (except the Windows Vista Home editions) and System Image Recovery is available for Windows 7 systems.
#Windows Memory Diagnostic Tool. This tool scan your computer’s memory for errors.
#Command Prompt. System Recovery Options allows you to access Command Prompt and run various command-line specific commands, such as bootrec or diskpart.
Depending on your Windows version, System Recovery Options can already be installed on your computer.
#recovery
If these tools aren’t installed, you can access System Recovery Options with the original installation CD/DVD or USB (the media you used to install Windows). On most Windows 7 systems, these tools are already installed, while on Windows Vista systems are not.
To check if you have System Recovery Options installed, follow these following steps:
how to repair windows 7