I want to put six partions into one

Hi, something's happened to the Windows Recovery partition (450Mb) I mentioned. That provides the automatic recovery sequence (which rarely succeeds) and the ability to boot to a Command Prompt, System Restore, Startup Repair.

I don't know what your 70.47Gb Recovery partition is- perhaps that is it, but why it's so large I've no idea.

You need to decide if D: is still useful- would you ever want to restore the machine to 'as bought'? If not, you can delete it, else move it to the end of your disk, so to speak (to the right). You can do that with a partition manager.

It look like he followed NavyLCDR's suggestions: (post #9)

Delete every partition to the right of the C: drive partition until it is just one big unallocated space after C: drive. Then you can either expand C: drive to fill the rest of the drive. Or you can expand C: drive, but leave space at the end of the drive for a data partition to hold photos, music, movies, documents, whatever. You can easily leave 400 - 500 GB free at the end for that. Then in the 400-500 GB free space create the data partition formatted as NTFS. It would probably get drive letter D:

Not the best choice!