How to modify the windows7 version of the tips to share

How to modify the windows7 version of the tips to share:

Some friends when viewing the system properties, found that their system has become Windows 7 Service Pack 2, very tangled. Why do those games have to modify this? I don't know yet, but we know how to recover and know how to change it.

The service pack 2 shown in the Windows 7 system properties, the value is controlled by a key value in the registry, the real service pack will modify this value after installation, some game patches or even malware This value will be modified, and we can modify it ourselves to achieve the purpose of deceiving certain software and upgrading programs. However, modifying this value will also cause some software installations to fail, so it is best to change the service pack's friends who have changed their service packs.

Below we have the following method:

1, enter the regedit in the search box of the start menu (or Win key + R key to open the run window and enter regedit), run the registry editor, Navigate to

HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Control\\Windows\\Modify CSDVersion (DWORD value), 0 means no SP, decimal 256 means SP1, 512 means SP2, or directly in hexadecimal , 100 stands for SP1, and so on. Modify back to 0 to restore to the current normal state.

2. Restart your WIn7 system.

You can also use this to play, but please remember to restore it after modification, so as not to affect the subsequent real Win7 SP1 and Win7 SP2 installation, you can export a backup of the registry key before modification. Import and restore. Most of the secrets of Windows are in the registry, knowing the drift, do not know the understand.