win7 date and time cannot be modified

Win7 date and time cannot be modified

Fault phenomenon: Windows 7 system cannot modify the time, OK button It's gray. The time zone bar prompts "Your current time zone cannot be recognized. Please select a valid time zone."

Picture:

Cause of this failure: This situation is generally caused by system streamlining or registry optimization and other similar software deleting the registry information of the system time zone.

If you want to solve this kind of problem:

Copy the following content to a .reg file, assign the value and double-click to import.

Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Time Zones\China Standard Time]
"Display"="(GMT+08:00) 北京，重庆，香港特别行政区，乌鲁木齐"
"Dlt"="中国夏季时间"
"Std"="中国标准时间"
"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
00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00

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