What can I do if the win7 system time cannot be modified?

  

Generally encountered such problems, we can use the registry to solve.

First create a new Notepad file on the desktop, enter the following, save the file suffix as .reg, and then 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) Beijing, Chongqing, Hong Kong Special Administrative Region, Urumqi "

"Dlt"="China Summer 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

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