A black screen prompts windows not to start after the Win7 system is powered up

In fact, this code means that the boot file is missing, the boot file (NTLDR) is generally stored in the C-packing directory, is a hidden and read-only properties of the system files. The primary responsibility of the boot file is to parse the Boot.ini file. The Win7 system will experience the three stages of booting, booting, and loading the kernel during the boot process, and if a problem occurs at one of these stages, the system fails to boot properly, causing the computer to black screen.

Workaround:

1, the WINDOWS7 system boot disk into the floppy disk drive, or the WINDOWS7 system installation CD into the CD-ROM drive, restart the computer.

2. When the "Welcome to Setup" screen appears, press R to start Recovery Console.

3. At the Recovery Console command prompt, type the following lines and press ENTER after each line of command.

MD tmp

Copy C:/windows/system32/config/system C:/windows/tmp/system.bak

Copy C:/windows/system32/config/software C:/windows/tmp/software.bak

Copy C:/windows/system32/config/sam C:/windows/tmp/sam.bak

Copy c:/windows/system32/config/security C:/windows/tmp/security.bak

Copy C:/windows/system32/config/default C:/windows/tmp/default.bak

Delete C:/windows/system32/config/system

Delete C:/windows/system32/config/software

Delete C:/windows/system32/config/sam

Delete C:/windows/system32/config/security

Delete C:/windows/system32/config/default

Copy C:/windows/repair/system C:/windows/system32/config/system

Copy C:/windows/repair/software C:/windows/system32/config/software

Copy C:/windows/repair/sam C:/windows/system32/config/sam

Copy c:/windows/repair/security c:/windows/system32/config/security

Copy C:/windows/repair/default C:/windows/system32/config/default

4. Type exit to exit the Recovery Console. When the computer restarts, the problem with the black screen is solved.