windows 7 cannot boot - cannot run chkdsk or diskpart

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.

BUrn ISO to CD using WIndows Image Burner on rightclick context menu, boot disk. You will need to first rightclick to delete the partition(s) you created which tipped the disk to convert to Dynamic, otherwise it will not convert back to Basic.

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

Unless GRUB or anything else has messed it up worse then it should boot and upon seeing a screenshot of Disk Mgmt we can help you do it correctly, which with HP if you want to preserve Recovery and Tools Diagnostic partition is converting C to Logical using PW, then shrinking C to add Logical Partitions. How to set partition as Primary or Logical.

Kaktussoft said:

linux can be deleted? So you don't need it anymore?
if so:

diskpart
sel dis 0
sel part 4
delete part

this operation is not allowed on an invalid disk.

gregrocker said:

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.

thanks for the info greg. i cant open that file (no hotmail account and dont want one)

OK, i found PW 4.2 from somewhere else. burned to CD and can now boot from it... loading.

hmmm. can load PW and see the disks but the mouse dont bloody work!

ok - deleting and wiping partition 4 now ...

Follow the video tutorial.

gregrocker said:

Follow the video tutorial.

the option to convert to basic disk is greyed out, so i cant do that. i have partition wizard 4.2.2 - so assumed id be able to do this from it?