The reason why the computer system time cannot be changed and how to solve it

　　One, the system time cannot revise what reason

The system time can not be modified for many reasons, generally have the following several.

1, the user does not have the Operation authority

Sometimes our system Super Administrator set up some users are ordinary users, and we logged in to the user is the use of these users do not have permissions, so we can not go into the system to modify the time.

2, computer motherboard battery is not power

If our computer motherboard battery is dead, this generally occurs when the time and date is lost, even if we change the save after the shutdown date is still invalid, which also caused the system time can not be modified.

3, computer system poisoning

If our computer system is poisoned, it may also cause the system time cannot be modified.

　　Second, the system time can not modify the solution

According to the above situation, we have to solve the corresponding method, if it is a user rights issues, very simple to allow the administrator to give the appropriate permissions or upgrade the user level, set as the administrator on the line, the motherboard battery is very simple to replace the battery, if the system is poisoned the antivirus on OK. For the front of that button is grayed out can be changed by the method of modifying the registry, import the following to the registry can be basically resolved (create a. reg file and double-click to import), the contents are as follows:

Windows Registry Editor Version 5.00

[Hkey_local_machine/software/microsoft/windows nt/currentversion/time Zones/china Standard Time]

"Display" = "(gmt+08:00) Beijing, Chongqing, Hong Kong SAR, Urumqi"

"Dlt" = "Chinese Daylight Time"

"Std" = "China Standard Time"

"MapID" = " -1,75"

"Index" =dword:000000d2

"Tzi" =hex:20,fe,ff,ff,00,00,00,00,c4,ff,ff,ff,00,00,00,00,00,00,00,00,00,00,00,/

00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00