Bitlocker And Cracked Logons
May 1, 2009
Bitlocker and Bitlocker for Windows 7 are supposed to be great at preventing stolen disks or stolen computers from having their disks compromised by being installed in another computer (or by booting the computer with another OS).
But, if you steal a computer, there are lots of tools on the 'net that will crack logon passwords. How does Bitlocker help in these situations? If someone can crack the logon password, then they *are* the person that the BitLocker disks are decrypted for.
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Sep 17, 2009
I bought Vista Ultimate (came with the 32/64bit disks) due needing something to play games and and thinking that vista would last me. Problem: My CD's are cracked physically, so how do I get them replaced?
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Jun 30, 2008
how to use this program? I try it once on my drive and it created another smaill drive. why? Even though now I reformated my computer back to original way it was before this. I am now curious as to what this program does and how to use it?
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Oct 2, 2009
I have Vista Ultimate SP2 and want to use the BitLocker. I need to know which instructions to use. With or without the TMP. How can I find out if I have the TMP or not?
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Jun 13, 2008
I have been using bitlocker on a Sony Vaio - with TPM. Yesterday someone used my PC to check an XP installation CD. They booted from the CD and when they reached the setup screen, they exited. After that I had to enter my key as I booted the PC - indicating that bitlocker had detected a change. The way to stop having to do that is to turn bitlocker off and then on again.I turned bitlocker off, but when I went to turn it one again, it tells me that my system is not configured to use Bitlocker. It tells me to remove any bootable CD or DVD and reboot and if that doesn't help to upgrade my BIOS. There are no CDs or DVDs and my BIOS is the latest version - and was working yesterday with Bitlocker. I am assuming that the XP instalation CD has in some way altered my disk drive so that it no longer appears to be configured to use Bitlocker. I have run the Drive Preparation Tool,
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Aug 15, 2008
i have just purchased by new machine which came with vista ultimate 64bit SP1 pre installed. the bit locker will not work as there is no TPM found is says a TPM is required to turn on bitlocker. i know you can use a flash drive every time you start up the machine but i dont want to do that. Does anyone know how i can get a TPM or know a solution - i read something about upgrading the bios but i dont know what bios i have!
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Aug 8, 2008
Can I use Bitlocker on this laptop? Disk layout = Premium- XP Pro- Storage- Ultimate The storage partition is an extended partition. If I can use BitLocker on this laptop will it protect all 4 partitions?
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May 16, 2009
My Dell does not have TPM. I am using bitlocker with a USB. I notice that the Recovery drive is neither protected nor eligible to be protected. I am wondering whether this is a weakness in my protection.
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Apr 15, 2008
How can I confirm that BitLocker is indeed turned off? Microsoft provides the instructions below, but this is after it has been on. I see no BitLocker options under Control Panel, Scenario 5: Turning off BitLocker Drive Encryption Scenario 5 describes how to turn off BitLocker Drive Encryption and decrypt the volume. The procedure is the same for all BitLocker Drive Encryption configurations on TPM-equipped computers and computers without a compatible TPM. When you turn off BitLocker, you can choose to either disable BitLocker temporarily, or to decrypt the drive. Disabling BitLocker allows TPM changes and operating system upgrades. Decrypting the drive means that the volume will once again be readable, and that all the keys are discarded. Once a volume is decrypted, you must generate new keys by going through the encryption process again.
Before you start You must be logged on as an administrator. The drive must be encrypted. To turn off BitLocker Drive Encryption Click Start, click Control Panel, click Security, and then clickBitLocker Drive Encryption. From the BitLocker Drive Encryption screen, find the volume on which you want BitLocker Drive Encryption turned off, and click Turn Off BitLocker Drive Encryption. From the What level of decryption do you wantdialog box, click either Disable BitLocker Drive Encryption or Decrypt the volume as needed. By completing this procedure, you have decrypted the operating system volume.
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Mar 27, 2007
Windows Vista includes a new hard drive encryption feature called BitLocker Drive Encryption. BitLocker can be a very useful security feature for businesses and home users that have sensitive and confidential information stored on their computer. Unfortunately, BitLocker Drive Encryption by default requires a Trusted Platform Module (TPM Chip) version 1.2 or later installed in your computer. A lot of the computers and laptops on the market do not come with TPM chips installed since they are typically only found in premium model business computers. If you have Windows Vista Business, Ultimate or Enterprise but do not have a TPM chip, you can still use BitLocker Drive Encryption.
Hidden away in local group policy is a setting that will allow you to turn on the ability to use a USB storage device instead of a TPM key to store the encryption key. This is a great feature for users that don't have the latest high-end hardware because you can still use hard drive encryption. However, every time you turn on your computer, the USB storage device that has the encryption key located on it must be plugged in. Without it, your computer will not boot up. One BitLocker Drive Encryption is setup with a USB storage device, that USB storage device basically becomes the key to your computer.
Follow these steps to turn on the ability to use a USB storage device with BitLocker Drive Encryption on hardware that does not have a TPM device:
Click on the Start Button and key in gpedit.msc and hit Enter....
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Mar 23, 2008
I am about to purchase a Dell M1330, which doesnt offer a TPM module. I also don't want to deal with plugging in a USB Flash drive every time I boot up (which could get stolen with a laptop). I have the following questions regarding Bitlocker
1 Can I still use the Bitlocker feature of Windows Vista with a TPM module or USB flash drive? 2 Are there any articles that document how secure Bitlocker is in keeping your data safe if your laptop is stolen? 3 If for some reason that operating system gets corrupt, is there a way to extract my data off of the hard drive if I have the encryption keys?
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Mar 23, 2008
I read in the BitLocker ReadMe that a TPM was recommended, but not required. So I ran the BitLocker Drive Preparation Tool and let it add a new boot partition. So now I have an extra volume, S:. I then saw a message that a TPM is required. Upon further reading, I discovered that the requirement can be turned off, but the alternative is to use a USB flash drive as a key.
The inconvenience of this solution is not worth it for me, so I will use Ecrypting File System (EFS) instead. Had I known this in the first place, I would not have ran the Bitlocker Drive Preparation Tool. System Restore changed the drive letter of the volume, but nothing else changed. How can I undo what Bitlocker Drive Preparation Tool did? I know that in general, I need to move boot files and change the active partition, but I am afraid of making my systen non-bootable.
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Mar 26, 2008
I read in the BitLocker ReadMe that a TPM was recommended, but not required. So I ran the BitLocker Drive Preparation Tool and let it add a new boot partition. So now I have an extra volume, S:. I then saw a message that a TPM is required. Upon further reading, I discovered that the requirement can be turned off, but the alternative is to use a USB flash drive as a key. The inconvenience of this solution is not worth it for me, so I will use Ecrypting File System (EFS) instead. Had I known this in the first place, I would not have ran the Bitlocker Drive Preparation Tool.
System Restore changed the drive letter of the volume, but nothing else changed. How can I undo what Bitlocker Drive Preparation Tool did? I know that in general, I need to move boot files and change the active partition, but I am afraid of making my systen non-bootable.
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Mar 23, 2008
read the following negative about bitlocker. Can anyone confirm these and even point me towards an official MS document confirming these
1. non-Microsoft software updates will require you to completely disable BitLocker before you start
2. System upgrades will require you to decrypt the volume
3. Only volume containing OS and system files will be encrypted. Other volumes are nto encrypted by bitlocker but can be encrypted using EFS. Will there be any support for bitlocker using certificates issued by Active Directory enabled PKI services? (microsoft certificate services)
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Mar 23, 2008
I have a Tecra M5 (PTM51E) running Vista Ultimate. I would like to configure Bitlocker using the TPM which is on board. I am aware that Bitlocker can be used without a TPM, but this requires the user to have an external token e.g. on a USB drive which they have to insert at boot time. I would rather use the TPM mode so there will be no need for this.
I have flashed the BIOS to v3.60 which is the latest. Before I was able to flash the BIOS from within Vista (which is the only option provided on the Toshiba European support site) I found I had to load the drivers for the "Value Added Package", without this the BIOS updater simply says "Computer not supported". Another way to do it is get the BIOS for the PTM51U from the US site which allows you to write the BIOS updater onto a bootable floppy...........
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