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  1. #1
    New Lounger
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    I've upgraded my Sony VAIO model VGN-SZ483N to Windows 7 Ultimate, and was hoping to install BitLocker on the hard drive to protect me in case the laptop gets stolen while travelling.

    When I try to activate BitLocker, Windows tells me it can't find a Trusted Platform Module (TPM) on the machine. I'm sure I remember seeing a TPM listed as being present previously when I had Vista installed on the machine (I think it was one of the System Devices in Device Manager), but now all signs of it seem to have disappeared. I know the machine has a TPM included because its listed in the specifications for that model VAIO.

    Is there something I need to do to make the TPM available to Windows again? I have all the original Sony device drivers that came with the system, but I can't find any reference to any of them being related to the TPM.

    Chris

  2. #2
    2 Star Lounger zigzag3143's Avatar
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    Quote Originally Posted by Chris Blunt View Post
    I've upgraded my Sony VAIO model VGN-SZ483N to Windows 7 Ultimate, and was hoping to install BitLocker on the hard drive to protect me in case the laptop gets stolen while travelling.

    When I try to activate BitLocker, Windows tells me it can't find a Trusted Platform Module (TPM) on the machine. I'm sure I remember seeing a TPM listed as being present previously when I had Vista installed on the machine (I think it was one of the System Devices in Device Manager), but now all signs of it seem to have disappeared. I know the machine has a TPM included because its listed in the specifications for that model VAIO.

    Is there something I need to do to make the TPM available to Windows again? I have all the original Sony device drivers that came with the system, but I can't find any reference to any of them being related to the TPM.

    Chris
    Hi Chris

    First you need to find out if TPM is installed and working.. I would start by searhing for "TPM" in search to see if it is installed. If it is then try launching the exe file and let us know what the error code is

    Ken J
    Microsoft Most Valuable Professional-- Windows Expert Consumer 2009---2015
    MCC 2013-2015

    Wanikiyi & Dyami--Team ZigZag3143

  3. #3
    Plutonium Lounger Medico's Avatar
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    You probably already have seen this page from MS. My Vaio (VGN-FW465J) does not have WTP. Not sure if it is available for my model. This site may give some clues.
    BACKUP...BACKUP...BACKUP
    Have a Great Day! Ted


    Sony Vaio Laptop, 2.53 GHz Duo Core Intel CPU, 8 GB RAM, 320 GB HD
    Win 8 Pro (64 Bit), IE 10 (64 Bit)


    Complete PC Specs: By Speccy

  4. #4
    New Lounger
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    Thanks for the replies.

    I've searched for TPM and run tpm.msc. That brings up a window which says "Compatible Trusted Platform Module (TPM) cannot be found on this computer. Verify that this computer has a 1.2 TPM and it is turned on in the BIOS."

    It looks like the TPM has not been detected by Windows for some reason after I upgraded to W7. I'm sure the computer has a TPM included as I remember seeing it listed under Vista. I've tried checking my BIOS settings but can't find any reference to a TPM there so I don't think its a matter of it not being enabled in the BIOS.

    I suspect there may have been some Sony utility that activates the TPM that was present in the original OEM installation but doesn't come with native Windows 7.

    Chris

  5. #5
    Plutonium Lounger Medico's Avatar
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    Quote Originally Posted by Chris Blunt View Post
    I suspect there may have been some Sony utility that activates the TPM that was present in the original OEM installation but doesn't come with native Windows 7.

    Chris
    You may be able to get the Sony software disk from Sony. When they sent me my Win 7 upgrade disks they were generic Win 7 disks. The Sony specific software came on a second disk. My VAIO also does not list this module at present.
    BACKUP...BACKUP...BACKUP
    Have a Great Day! Ted


    Sony Vaio Laptop, 2.53 GHz Duo Core Intel CPU, 8 GB RAM, 320 GB HD
    Win 8 Pro (64 Bit), IE 10 (64 Bit)


    Complete PC Specs: By Speccy

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