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Win7 system uses BitLocker to unlock and must be restarted to lock again. How to do

  
1. First press ""WIN+R” on the keyboard to open the "Run" window, enter "CMD" and press Enter;
2 In the CMD window, enter “manager-bde -lock K:”, K represents the partition letter that the user wants to lock, so that the partition can be locked, so that you can lock it again without restarting.

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