Invalid partition - How to recover it?

[Joguno]

Hello,

I'm using a PPMS v.10 personal edition. In my HDD everything working fine untill I intended to resize my Primary partition usig PPM.
On my HDD exist 6 partitons, the first one containing an OS (primary) and 5 logicals (From C: to H: )
When I order to PPM to resize C: partition it identified a "disorder" on the H: partition, wich appeared in red color. I picked-up on H: partition and copy the information given on the screen (see attached file)

The resize operation was aborted because of this "disorder".
I tried to format de invalid partition and PPM says - "Windows or other applications are using the partition" - operation aborted.
I tried to Delete partition - and results the same story.
I tried to repair it using Norton System Works - It can not repair the partition.

So, does any body know the way to recover the invalid partition?

PD: Windows and all applications are runing fine. I've read a little trought the forum and found I'm not the only one who has this problem - there is the solution?

Thanks.

[Robin A.]

Try to work outside of Windows. Build the boot medium (CD or USB key) and work from it.