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Windows 7: Volume label (unknown) in System Recovery Options

02 Jun 2015   #1

Win 7 Professional x64
Volume label (unknown) in System Recovery Options

Hoping somebody can help me with this one...

I dropped my laptop while it was starting up. Needless to say, it didn't like it.

On restarting, it didn't boot properly, but went to "repairing startup errors", and hung at that point.
I dug out the retail W7 disk I used for installation (Pro x64 with SP1), and eventually got the system recovery options interface working*.
It sees the right partition, with Win7 installed, but instead of a volume label (C:, D: etc), it has (unknown), with a partition size of 0MB. I'm guessing this is why it won't boot into Windows. Sooo... how does one go about fixing this?!
Fwiw, it's a Lenovo Y410p with a single HDD, a mSATA SSD for caching, plus DVD drive.

*- I spent 90 minutes with the DVD saying that the System Recovery Options wasn't compatible with my version of Windows. Through trial and error and changing the boot mode to UEFI and back to legacy, I somehow got it working...

My System SpecsSystem Spec
02 Jun 2015   #2

Win 7 Professional x64

Just an update: Diskpart shows only one volume on the HDD, volume 1, C, which is the System Reserved partition of 100MB...

And bootrec.exe doesn't identify any Windows installations.
My System SpecsSystem Spec
03 Jun 2015   #3

Win 7 Professional x64

A bit more digging last night basically brings me to:
- In safe mode, Windows gets to "loading drivers..... disk.sys" and then hangs
- In the Repair Environment (when booting from the install DVD), it recognises that there is a W7 installation, but the volume is labelled as (unknown) with a size of 0MB
- Bootrec doesn't recognise any W7 installations on the disk, but it does see the other partitions.

Soooo... I'm not entirely sure what to do next. Will putting the disk in an external caddy at least allow me to get my files off it?

Any help much appreciated!
My System SpecsSystem Spec


 Volume label (unknown) in System Recovery Options

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