Super User Stack Exchange
Super User Stack Exchange

Questions tagged [bitlocker]

Microsoft Windows technology for full disk(volume) encryption.

BitLocker is a full disk encryption feature that adds a layer of security to storage devices to protect data and sensitive information from falling into the wrong hands. BitLocker is available in the Windows 7 Enterprise and Ultimate Operating Systems as well as Windows Server 2008 and 2008 R2 Operating Systems.

Features include:

  • Multi-factor authentication
  • Ability to encrypt Removable storage devices
  • AES 128-bit (or 256-bit) encryption
  • Group Policy and Active Directory integration
890 questions
34
votes
13 answers

How to format a drive encrypted with Bitlocker?

I have a HD protected by Bitlocker. Login, password and restorekey are unknown and all I want to do is wipe the whole drive. When I try to boot from a windows installation cd I have no access to the drive since it asks for the restore key I don't…
Amenti
  • 495
10
votes
2 answers

What identifier is meant in the Bitlocker recovery key document?

when turning on bitlocker for a device, the following recovery key document is created: BitLocker Drive Encryption recovery key To verify that this is the correct recovery key, compare the start of the following identifier with the identifier…
joh
  • 563
7
votes
2 answers

Why does BitLocker need a minimum volume size of 64 MB?

Since the future of TrueCrypt appears to be still unclear, I figured I'd try to get my stuff migrated into BitLocker at least for the time being. I nearly never have to access my encrypted data from anything that's not BitLocker-capable, so…
Iszi
  • 13,775
6
votes
2 answers

Will turning on bitlocker erase existing data the encrypted partition?

I've got a 700GB external disk. Can i safely turn on bitlocker without erasing any data?
user35072
  • 517
3
votes
1 answer

Bitlocker - no password option available

I have a laptop with tpm and bitlocker support. I am trying to set up a simple password on startup by bitlocker just like veracrypt, though when I try to set bitlocker all I see is this: There is no password option even when I move forward in the…
RunningFromShia
  • 139
  • 1
  • 2
3
votes
0 answers

Bitlocker Performance Hit around 60%?

I enabled 128 bit AES Bitlocker on my machine expecting to take a single digit performance hit on read/write time (based on what I had read online). However, with ATTO Disk Benchmark I am seeing a ~60% on write and uneven performance on read, but…
John Shedletsky
  • 245
2
votes
3 answers

How exactly does bitlocker protect my data?

I presume that if I set a password for my computer and then protect the C: drive with bitlocker then not even FBI can do anything about it. Without password for my user, will bitlocker has any uses?
user4951
  • 4,705
2
votes
0 answers

How to recover files from formatted BitLocker encrypted drive

I've used ThinkVantage Secure Data Disposal tool aiming to erase a HDD 7 times but I stopped it once i've started (in 2 secs). The HDD is Win7 OS with Bitlocker encrypted. When I started the laptop again, no OS is found. I got the 48-digit Bitlocker…
Rachel
  • 21
2
votes
0 answers

I know that we can make VeraCrypt Header Backup, but how about BitLocker?

I only know that Bitlocker have Master Key Backup if we forgot our password. But how to prevent if there's bad sector or corruption at the Headers?
user1686111
2
votes
1 answer

How to increase maximum BitLocker password length?

How do I increase the maximum number of characters allowed in the BitLocker password? The current maximum is 20. I know that it's possible, because I have a second machine where the length is 8-256 characters. The group policy option "Allow…
JBSnorro
  • 257
2
votes
0 answers

Does cloning a Bitlocker drive change its decryption key?

A windows 10 is installed on a SSD on a laptop, the drive is Bitlocker encrypted. Now the laptop is broken. The SSD will be cloned onto a new and bigger SSD. Afterwards the Bitlocker has to be decrypted. Question: Does the bitlocker key ID change…
eckhart
  • 951
1
vote
1 answer

What happens to encrypted drives if the computer is damaged?

I bitlock all of my hard drive except for the C drive. What happens if my computer malfunctions and I have to move the drive to another computer? Will all of my encrypted drive be useless? Will it be okay as long as I know the password for those…
user4951
  • 4,705
1
vote
1 answer

How to use "Used Disk Space Only" encryption in Windows 7

I'd like to know if Bitlocker's "Encrypt Used Space Only" feature in Windows 7 can be tuned to speed up the encryption process, for instance by tweaking the registry or adding services or packages. Is this possible?
Sourav
1
vote
0 answers

BitLocker status “Not Encryptable” for my 2gb memory card

I am using 2gb memory card in my phone. I used BitLocker function in Windows 7. Now my memory card doesn't open and can't be formatted. When I open the card, the message Formatting memory is displayed. Then the message Formatting memory…
vineesh
  • 11
  • 2
1
vote
0 answers

BitLocker demands the keys on each system restart

I use my external SSD to boot Windows via a USB-C port. However, I have to enter the BitLocker key each time I restart my machine even without unplugging the USB port. How to fix this?
Real Dreams
  • 4,988
1
2 3 4