Bitlocker drive in Mac

Hello
I have a external drive, which is bitlocker encrypted and when I am trying to read data from that drive into my new Macbook Pro, it's throwing error.
Could you please suggest any solution for this ?
Regards,
Ankit Kochar

There must be some way, apart from formatting it ...

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How to format an external drive for mac AND pc use

i want to format my external drive so i can use it on my mac and on pc's as well. i've gathered that the MS-DOS format is the way to go. my question is this: would this create any problems for my mac then?
can i partion one part for ms-dos and part for macos extended?
cheers
-j-

MS-DOS format (or FAT32) will be fine for both Mac and PC. However there is a 4GB file size limit with FAT32.
You could use a dual partition, however the HFS+ partition would not be readable by the PC unless you installed the third party MacDrive.
Look at this page for more information on a dual partition drive for Mac and Windows.
http://macosxhints.com/article.php?story=20030613121738812
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Greeting, I want to reformat my external hard drive using Mac OS Extended (Journaled, Encrypted ) but before formatting it, I want to make sure that if I loose the hard drive or the hard drive get stolen, no one will be able to retrieve or recover the in

Greeting,
I want to reformat my external hard drive using Mac OS Extended (Journaled, Encrypted ) but before formatting it, I want to make sure that if I loose the hard drive or the hard drive get stolen, no one will be able to retrieve or recover the information on it so could you tell me what kind of encryption will be used or is there any way to recover the information?
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How to Back up iPhone to External Hard Drive on Mac/Windows

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Retrieve data from a Hard Disk That was connected to the optical Drive of Mac Book pro

Hi Experts
I have been using a Mac Book pro from 2011 (Early 2011 Model), In the mid of 2012 I have planned to upgrade, and bought a 240 GB SSD and 16 GB ram from OWC, Installed successfully and bought another 750 GB WD Sata Disk and connected it to the Optical Drive Bay of the Laptop, using the optical drive as an external device now
I was using the SSD as the main disk for all the applications and OS itself, and tranferred all the user library (iTunes Library, iPhoto Library, Documents etc..) to the additinal 750 SATA Disk,
Last week the Mag Safe cable has been worn out and seperated completely from the adapter, I tried soldering the cable again and it was working for two days, third day The machine stopped charging and it was working until the battery run out of charge,
Now I have bought a new Mag Safe Charger for 108 Singapore Dollars and it wont charge, read in iFixit Forums to change the Mag Safe DC in Board, so found a new part in singapore and replaced DC in Board myself, after doing this when I connected the new mag safe adapter, it fired the cpu fan for two second, I was able to see the green light the adapter and it stopped again and the green light wont lit up now
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Regards
Vinodh

Welcome to the discussions!
It sounds as if your disk was not correctly formatted to work with the Mac operating system. I suspect it was formatted in FAT32, which is primarily a Windows format. This type of format will not allow the disk to accept any files larger than 4GB. That's probably why you are seeing the crashes.
Connect the drive to your Mac and open Applications > Utilities > Airport Utility.
Click your disk on the left and click the erase tab on the right. You need to format the drive in +Mac OS Extended (Journaled)+. Formatting will erase everything on the disk.
Then you could try the drive again attached to your AirPort Extreme to see if that will do what you want.

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How do i partition external hard drive using mac

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You can use an external disk for store files and for Time Machine, but you have to create a second volume.
To create volumes on the external disk, use Disk Utility. See > http://pondini.org/OSX/DU3.html I recommend you to put as much space as you can for the Time Machine volume, because backups consume a lot and Time Machine starts deleting backups when the external disk is full

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http://www.apple.com/support/macbasics/
Isolating Issues in Mac OS
http://support.apple.com/kb/TS1388
https://www.apple.com/support/osx/
https://www.apple.com/support/quickassist/
http://www.apple.com/support/mac101/help/
http://www.apple.com/support/mac101/tour/
Get Help with your Product
http://docs.info.apple.com/article.html?artnum=304725
Apple Mac App Store
https://discussions.apple.com/community/mac_app_store/using_mac_apple_store
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http://www.apple.com/support/timemachine
Mac OS X Community
https://discussions.apple.com/community/mac_os

I can not save any data to external hard drive from my mac pro. Is there anyone can help me in this regard?( note, when i first plug my ext. drive to mac i chose option to backup later)

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BitLocker Drive Question

We created a new image and deployed it using CM2012. In our image we have 1 disk. Disk 0. It is broken up into Two separate parts. The C:\ drive and OS take up most of but we have an empty space called BITLOCKER. We want to enable BitLocker
via GPO's. How do you make BitLocker use this empty 300MB for it's tasks? or does it know to look for it by default?
mqh7

If bitlocker is your system reserve partition, then no need to read further.
If 'bitlocker' is an empty volume as you mention- all you need to use bcdboot tool to copy off all the system files to this partition and then mark it up as active.
alternatively you can use bitlocker drive preparation tool but that will create a new partition and "bitlocker" will remain empty. https://support.microsoft.com/en-us/kb/933246?wa=wsignin1.0
Mayank Sharma Support Engineer at Microsoft working in Enterprise Platform Support.

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Charles

Hi Ronald,
Thanks for reply. I read your solution in the blog and I think you might misunderstand what Charles means.
I think Charles did mean he changed his computer name and wants his drive label in Bitlocker password entry match his new computer name, not just change the Bitlocker driver label.
As following:
But still thank you for your input.
Regards

Bitlocker enabled drive, recovery key needed during boot, PCS did not match, event id 24635, source bitlocker-driver

Hi
After rebooting one of our test machines, bitlocker wanted the recovery key.
There were no hardware modifications on that machine.
Error message in event log:
Bootmgr failed to obtain the bitlocker volume master key from the TPM because the PCRs did not match
Event id 24635, source bitlocker-driver
Each time the machine starts, the recovery key is needed.
Any idea how to solve that issue and why it happens?
update:
Second partition was created manually on that machine. So that's clear that bitlocker reacts...
But now: how can I confirm those changes so that the recovery key is not needed each time we boot?

Hi,
I would like to confirm if BitLocker accepts the recovery key?
Please update the BIOS to improve the stability for TPM first.
I also would like to suggest you disable and enable BitLocker again to reset the settings.
For more information, please refer to the following link:
http://technet.microsoft.com/en-us/library/dd835565(WS.10).aspx
Regards,
Arthur Li
TechNet Subscriber Support
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BitLocker Drive Encryption Recovery Key

I have a Dell Optiplex 7010 running Windows 7 Enterprise 64-bit. Intermittently when booting the computer the Windows BitLocker Drive Encryption Recovery Key Entry screen shows up. Most of the time I can power off the computer and then turn it back on and
it loads Windows without that screen showing up. If powering it off and back on again doesn’t get me past the Windows BitLocker Drive Encryption Recovery Key screen, I will enter the recovery key.
I have already reimaged the computer, replaced the hard drive, cleared Bitlocker Cache in the BIOS and have updated the BIOS to the latest version.
Any ideas to keep the Windows BitLocker Drive Encryption Recovery Key Entry screen from showing up?

Hi,
I have already reimaged the computer, replaced the hard drive, cleared Bitlocker Cache in the BIOS and have updated the BIOS to the latest version.
Did you mean you have re-install the OS? Did you use another clean image rather than capturing the old OS?
Did you encrypt the OS partition?
Please use below command to check the status:
manage-bde -status
If there is any volume is encrypted, use below command to turn it off:
manage-bde -off C:
Karen Hu
TechNet Community Support

Bitlocker drive issue

im trying to open my bitlocker drive the password is correct but after entering the password it is giving me a messege that
"bit locker drive encryption failed to recover from an abruptly terminated conversion. This could be due to either all conversion logs being corrupted or the media being write-protected"
plz help me all my work iv saved in this drive

Hi
repair-bde C: Z: -rp 062612-026103-175593-225830-027357-086526-362263-513414
Use repair-bde alone first
it should give you some information about bitlocker.
the full command explaination :
C: is the drive that your data is on that you want to recover
z: is the drive you want to copy the recovered data to
after -rp switch you have to type in your recovery password.
you can use -rk and specify recoverykey file location after.
ex: repair-bde C: Z: -rk F:\RecoveryKey.bek
Have fun Recovering :P
Farhad

Diffuser missing from BitLocker Drive Encryption

I couldn't help but notice on my Windows Server 2012 Essentials installation that the Diffuser options are gone from BitLocker Drive Encryption. This was a shocker. Since Windows Vista/Server 2008, the following four options have always been available:
AES 256-bit with Diffuser
AES 128-bit with Diffuser
AES 256-bit
AES 128-bit
The default was AES 128-bit with Diffuser, but I always opted for the strongest, and changed it to AES 256-bit with Diffuser. I made this change after probing around Google and Bing to see if BitLocker with Diffuser provided stronger encryption than BitLocker
sans Diffuser. What I found supported the use of Diffuser as being the strongest, thereby making AES 256-bit with Diffuser the strongest encryption of the four settings.
So to find Diffuser culled from BitLocker was a shocker, and made me lose a bit of respect for the technology. Why would you WEAKEN the product (BitLocker) by removing the stronger versions of the encryption? This TechNet article is quite disappointing: http://technet.microsoft.com/en-us/library/hh831713.aspx
The article simply says, "The Diffuser option is no longer available to be added to the Advanced Encryption Standard (AES) encryption algorithm" under the heading "Removed
or deprecated functionality." There is ZERO explanation.
I'm hoping someone can answer this, please. WHY would you take out the stronger versions of encryption in favor of leaving the weaker ones? Wouldn't it be more appropriate
to deprecate the non-Diffuser variants and require the use of Diffuser?
BitLocker was, and still is, a great technology, but it was just made quite a bit weaker with the release of Windows 8 and Server 2012.

Hi Manoj,
If I understand your answer, are you saying that the BitLocker options with Diffuser are actually WEAKER than those without it?
It's always been my impression that FIPS aims for the highest possible security standards. If FIPS-only environments allow BitLocker without Diffuser but disallow BitLocker when Diffuser is used, that would lead me to believe Diffuser actually weakens
BitLocker. Is this correct?
I guess that as long as BitLocker with AES 256-bit encryption makes the FIPS federal government folks happy, then it's good enough encryption for me!
Also, you mention crypto-acceleration hardware. Where would I find this? I'm guessing this is something found in newer servers, laptops and desktops? Or maybe even tablets? Would the new Microsoft Surface come with such capabilities?
Matt

Bitlocker drive in Mac

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