I'll have to take your word for it that you cannot uninstall apps on the HDD when you have booted from the SSD. I've never installed anywhere but C and have never had to deal with that problem.
Many people with small SSDs install some apps to an HDD without incident. I'm not sure how you find yourself in a predicament.
But that`s not the correct way to do it. You should 1st format/delete the partition/drive then start doing what you want. The old windows 7 is taking up valuable space you could be using.
Here is a screenshot of my uninstall menu from the SSD. The programs without space listed in "Size" were installed from my SSD Win7 instance, but onto the HDD under a folder called "Programs installed from SSD". They are taking no space on the SSD. And they require HDD activity to run. I use them less frequently.
The other programs do not activate the HDD, since they run purely off the SSD - faster and quieter.
Since there seems to be a lot of question about my intent here, I wonder if my reasoning makes sense at all...
Why can't you just delete the partitions on the HDD, create a new one, give it a quick format, and then re-install any programs you need?
You don't need to boot into it, just use Windows 7's disk management to repartition and format the old drive.
I think we're all struggling to understand why you seem to want to make things unnecessarily complicated.
To answer ignatzatsonic - Yes, I can. But they are duplicate installations performed from the SSD. I want to uninstall the old installations from the HDD Win7 instance.
To answer seavixen32 - I actually am trying to make things simpler by removing all the duplicate programs and finally Win7 from the HDD and then making my system single-boot.
We can help you remove the OS from HD in pieces but it's not recommended and can be a struggle requiring Take Ownership Shortcut on the WIndows folder.
The cleanest method is to wipe the HD it was on to clean the boot sector which sometimes presents problems with leftover code blocking future OS installs, or other problems.
The normal method is to delete the OS partition. You could do this here easily by shrinking it as much as Disk Management will allow, then creating a New partition in that space, dragging all of your files you want to keep over to that partition. Partition or Volume - Shrink
Partition or Volume - Create New
You could even drag your User folders (Documents, Picures, etc) intact to the new partition and then link them to the C:Win7 related Library - Include a Folder which is easiest, or move your C:Win7 User folders to your old User folders on HD: User Folders - Change Default Location
I would first install all needed Programs to the SSD which is best so they can be a part of it's backup image - it's the data which should be moved off if necessary as described above.
Once you've emptied programs and files from the HD OS partition, you can delete it in Disk Management from C, then create a new partition there or resize your HD data partition to the left to include the space using free Partition Wizard bootable CD.
Although every ones suggestions may work there is one thing that bothers me about your setup. On the SSD I do not see the 100MB System Reserve partition. So if you installed Win 7 on the SSD with the other hard drive connected the Sys Reserve section, The Active section which is needed to boot the computer, very well may be on the HDD. If you delete partitions and or format that drive your system may not boot back into Windows.
Please let us know if you had the HDD connected when you installed 7 on the SSD.
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