Windows 7: Reinstalled Windows 7 Multi-Partition Drive (Basic Disk now Dynamic)

Hi everyone,



I have a multi-partitioned hard drive. 4 Partitions in total (C: OS, D: Programs, E: docs, F: docs). After 2 years Windows 7 began having shut down problems, so I decided to reinstall the OS. Booted from the Windows 7 DVD and picked the first partition and formatted it and then installed the OS instead of just installing the OS over the old OS. I did this because in my mind I figured if I didn't format the C: drive, I would have left over files on the C: drive (Not sure if that is true or not). All other partitions were fine mind you.

Anyways the install went fine. I then went and booted off the Acronis Media Rescue CD to make a full backup of the install. Acronis would not see the disc because it was now dynamic.

This is where I noticed that Windows had converted the disc from basic to dynamic.

Now I am trying to figure out why would Windows 7 convert the disk to dynamic just because I deleted the first partition?

When windows converts 3 primarys to 4, it turns the disk dynamic. Don`t know how it happened in your case, as you didn`t add any more. Strange Are you on this pc ? can you post a shot of disk management ?

Convert a Dynamic Disk to a Basic Disk

The installer probably added the 100MB system partition.

It shouldn`t have, as he said he only formatted, not deleted. But you could be right.

Do this so we can see what you have.
Disk Management - Post a Screen Capture Image

The problem is that you converted your HD to Dynamic which is only meant to be used to span a partition across multiple HD's. Apparently you didn't see the warning message.

The solution to solve this non-destructively is to boot free Partition Wizard CD version 4.2 which is the last one which offers this as a free feature: pw422.zip ISO - Windows Live.

Download the ISO, rightclick to burn it to CD using Windows Image Burner, or use ImgBurn.

Boot CD. You will need to delete the extra partition(s) you created which tipped it to convert to Dynamic before it will convert back to Basic.

Then follow these video steps: How to convert dynamic disk to basic disk with Partition Wizard?

After conversion if you want help adding a partition post back a screenshot of your maximized Disk Mgmt drive map with listings, using the Snipping Tool in Start Menu, attached using paper clip in Reply Box.

Thanks for the reply guys. Here is the screen cap.

Didn't see any warning. Again booted from windows 7 picked new install and then it took me to my hard drive with 4 partitions showing. Then i hit format on C. Looking at the Disk Management I am seeing 2 little black sections on the drive. I am going to try to delete them and then convert to basic. Well that didn't work. I guess its unallocated space and can't be deleted.

In the screen cap I see 2 black little unalocated blocks showing. Originally they were not there.

PS I tried Partition Wizard 4.2 Free and rebooted to use it. The convert to "Basic" gave me an error. I then went with EaseUS Partition Master Home Edition inside Windows and it gave me an error.

Poorly stated but the error reads "Find some partition error, continue this operation might cause boot failure and data loss, are you sure to proceed?"

To convert to Basic, you'll need to delete all but four partitions since it was attempting to add a fifth Primary that tipped it to Dynamic.

So I would move the data off D and delete it since it has the least data. After conversion create a new Logical partition there: How to Create Partition with partition manager? Partition Wizard Create Partition Video Help

Then I would convert E and F to Logical also so you can resize amongst them easily as you please: How to Move/Resize Partition with partition manager? Partition Wizard Move/Resize Partition Video Help.. It's safest to have Logical data partitions anyway, as you found. And with PW, you can even resize D to the right to extend C into its space without extra steps required in Disk Mgmt.

Well, it turns out Britton was right, and windows created the system reserve partition. You must have deleted the last partition down to unallocated space. Then when you did the install on that space it made the sys res partition and the install partition , for a total of 5 partitions which were turned Dynanic.

You needed to simply format your install partition.

Get rid of the system reserved partition, then get windows booting by running a stsrtup repair with you windows 7 disc up to 3X

You can then use the methods given to change it back to basic.

I'd be surprised if the Windows 7 installer allowed it to convert to Dynamic. I've seen these weekly since Windows 7 release and never seen it happen other than when the warning is ignored during a partitioning operation.

You up for another simulation Brian?