Windows 7 Forums

Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: Sudden lost partition

02 Mar 2011   #1

Windows 7
Sudden lost partition

Hi all,

Today, when I restarted my computer, the D: partition disappeared. I had just finished installing a new game, and played it for a bit. Other than that, I wasn't doing anything strange. I have a single drive with a logical partition (C for programs, D for data). I downloaded the free Partition Wizard and ran the Partition Recovery Wizard. It found the missing drive along with the data and it apparently did it's thing. Now, in Partition Wizard, I can see all the drives, but I still don't have access to them in explorer. As I'm showing in the uploaded pic, there is a star beside 3 drives - 2 of them are supposed to be invisible (system reserved and restore disk). Does this mean that my lost partition is just invisible now?

Also, I am able to see the correct drive in the Disk Management window (after the issue, it said "unallocated" but now it has the correct drive letter and free space numbers).

What gives?

Thanks all,

Attached Thumbnails
Sudden lost partition-pwizard.png  
My System SpecsSystem Spec

02 Mar 2011   #2

Microsoft Community Contributor Award Recipient

Windows 7 x64

I would reboot a couple of times to make sure it doesn't reappear.
There are plenty of tools for finding lost partitions though.
Free Partition Recovery Software - Partition Recovery Freeware to undelete partition, recover deleted or lost partitions.
My System SpecsSystem Spec
02 Mar 2011   #3

Windows 7 Ultimate x64 SP1

Hi buggaby,

Go to Disk Management, right-click onto the partition named "Data" and choose "Change Drive Letter and Paths". After that you can set any letter (e.g. D: ) to this partition and it should appear in Windows Explorer.
My System SpecsSystem Spec

02 Mar 2011   #4

Windows 7

Changing the drive letter worked. Thanks new-member-longnh
My System SpecsSystem Spec
02 Mar 2011   #5

Microsoft Community Contributor Award Recipient

Windows 7 x64

More over I would still run check disc on the drive, it shouldn't have dropped in the first place.
My System SpecsSystem Spec

 Sudden lost partition

Thread Tools

Similar help and support threads for2: Sudden lost partition
Thread Forum
Solved Windows lost partition letter and don't recognize format partition BSOD Help and Support
lost partition General Discussion
Solved Extended partition and lost files on primary partition General Discussion
Lost partition General Discussion
Lost partition Hardware & Devices

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 08:54 AM.
Twitter Facebook Google+

Windows 7 Forums

Seven Forums Android App Seven Forums IOS App

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33