Black screen appears after Win7 system boot, Windows can not start

In fact, this code means that the boot file is lost. The boot file (NTLDR) is usually stored in the root directory of the C drive. It is a system file with hidden and read-only properties. The primary responsibility of the boot file is to parse the Boot.ini file. The win7 system will undergo three stages of pre-booting, booting, and loading the kernel during the boot process. If there is a problem in one of the phases, the system will not boot properly, resulting in a black screen on the computer.

Solution:

1. When the Windows 7 system boot disk is inserted into the floppy disk drive or the Windows 7 system installation CD is inserted into the CD-ROM drive, restart the computer.

2. When the “Welcome to Installer” screen appears, press R to start the Recovery Console.

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

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:/windo Ws/system32/config/security

copy c:/windows/repair/default c:/windows/system32/config/default

4. Type exit to exit the recovery console. The computer restarts and the black screen problem is solved.