I have several hard drives and change them often, transferring different information, experimenting with different partitions - so I had to find a good and reliable disk management program.
Happy to report, that I found such a program - this is Acronis Disk Director Suite program!
Now I can do all the actions with disks and partitions, whatever I want!
And recently I accidently (really!) deleted one important partition - and hail to Acronis, as they included a recovery module into the Disk Director Suite!
One mouse click - and it's back, the program restored the work results of the whole week!
Now I can say it loudly: if you need a reliable disk management program - then go and get the Acronis Disk Director Suite 9.0 program, it will save you time greatly!