Why would you be moving your "D: Data" to the almost full "C: OS" partition? That doesnt seem to make a whole lot of sense.
However, if you were looking for ways to clear up space on your C:\ Drive, you should reconsider where most of your games are installed. One major way that could free up space, would be to move Steam if you have it located on C:\.
You can move the entire C:\Prog Files\Steam folder at once, but I would rather advise you just properly uninstall all games, move the application by reinstalling it with the MSI, and then re-download your games incrementally.
I am not sure Sk1p. I know a little about computers, but nothing too advanced. I didnt know if it was something that could or should be done is why I asked.
Is it possible to save stuff to the Data D drive?
Also, why didnt the maker of my laptop just put all of the 500 gigs of memory I was promised in the c drive, instead of making a data d drive? What is the purpose of the Data d drive?
What OS are you using? If its windows 7 its pretty simple, if C is your primary drive then I think its possible to get it from D.
Search for "partition" in the search menu. Click on the first item of the list, it should be a program. Then right click on the C drive and click extend, then follow the steps.
When you have additional hard drives or partitions, you're able to choose where you want to save your data to. Additionally, you're able to simply cut and paste anything you want to move over.