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When uninstalling the patch, the certificate required for verification according to the current system clock or signature file timestamp is not within the validity period.
Because the computer date is incorrect, the problem can be solved by modifying the computer date to the correct time period.

If your computer is networked, you can also solve this problem by synchronizing the computer time with the network time.

Method for modif computer date

1. Double-click the date and time icon in the computer taskbar to open the date management window, as shown in the figure below.

2. Click on the "change date and time", as shown.

3. Click "Change Time" and set it to the correct time.