Sony Vaio VGN-CR313H: Unable to access recovery partition

Hi,
i have sony vaio vgn-cr313h, for last 3 years its worked fine. but from last 2-3 months it automatically powered off suddenly. so i took it to a repair shop they fix the problem and installed new bios of different model number and serial number.

Now, if i m trying to access sony vaio recovery center via f10 key during boot and selecting recover c drive option then it gives an "Error: model number could not be found error code 94." and failed to recover from recovery partition.

i want to know how to access hidden partition so that i can install my original windows vista with all its drivers and software.

thanks

Hello vijaysharma and welcome to Seven Forums.

Are you sure you still have the hidden recovery partition on the hard drive? The repair shop could have erased it. I suggest you open Disk Management and look for a recovery partition. It should be about 10 - 15GB in size. If you're not sure you could post a screenshot of the expanded disk management window.

How To Access Disk Management in Windows 7

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If no recovery partition exists the only other way to return you rmachine to factory specs would probably be by using recovery disks (a set of DVDs created by you at time of purchase or bought separately from Sony.) If the recovery partition does exist please post back. If it hasn't been damaged or corrupted it might be able to be accessed through Start > All Programs > Sony Vaio Care > Recovery or perhaps by using a live Linux CD like Ubuntu.

I have SONY VAIO VPCCW1Z4E Laptop I try to install a new Windows ultimate 7, but whenever i reach where I can select the partition to install a new windows, it shows that there is no Hard - driver where i can istall windows 7. I am seeking for your help in order to install a new windows on my Laptop. There is no operating system on my Laptop, please help me how i can see the partition in order to install windows 7. when i check in bios it shows me that the hard-drive is there but when it reach where select partition to install windows 7 it disappear. So any one with techniques and tricks please help me.......... Thanks

Work through these steps for Windows 7 Installation Failure - Overcome

It's possible you have a UEFI BIOS which requires special steps included to enable/disable UEFI, CSM or Legacy BIOS and if necessary create UEFI bootable installation flash media.