Hi.
1.O****n D: drive, the Protection is Off .. can i turn it back to On ? (maybe using a command ?)
Yes, of course.
The steps to enable disk protection are as follows:
Open in turn: Control Panel > All Control Panel Items > System > System Protection > Under "Protection Settings", select the D drive, click "Configure", select "Turn on system protection", and click "OK".
2.T****he Encryption method on D: drive is XTS-AES 128 .. Can i change it into XTS-AES 256 ?
You cannot switch the encryption method of an existing Bitlocker volume. You can only decrypt the drive first, then re-encrypt it with Bitlocker. Before that, you need to setup Bitlocker to use XTS-AES 256 。
For setup steps, please refer to:
https://www.howtogeek.com/193649/how-to-make-bitlocker-use-256-bit-aes-encryption-instead-of-128-bit-aes/#:~:text=Navigate%20to%20Computer%20Configuration%5CAdministrative,and%20select%20AES%20256%2Dbit.
3. Is it possible to select the Encryption method when i'm using the manage-bde command?
You can only use manage-bde to view the encryption method, but you cannot select the encryption method.
Hope the information is helpful.
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