|Partition Magic 8.x is fairly old (last updated ~2001) but it works for XP for what you want to do. However it's not free, unless you know someone who bought it you can borrow it from. You can run the Dos version of PM - it has all the same basic capabilities - by making a 2 floppy set made by running a program on the CD, and booting with the first floppy, so you don't necessarily need to install it on the hard drive. |
You have to delete the D partition to make unallocated space available, then you can Re-size C larger. However, no program that does this is without risk - it's always recommended you back up your data, at least what data you don't want to lose, to somewhere if you want to be 100% assured you won't lose it. On the other hand, I haven't had any problems I couldn't fix with PM 8.0 .
There is a very similar free program, not as old, that does the same things available on the web called Partition Logic, but I haven't used it yet - a freind has and recommends it.
NOTE that you should run CHKDSK /F in Windows on both partitions, or at least C, before you use any such software.
What's the size of the D partition? If it's not very big, there isn't much point in you increasing the size of the partition C is on - you're just going to fill up C again in a short time - get yourself a larger hard drive - you can use free software to copy the contents of your drive to the new drive - if this is a laptop, get an external enclosure for the new drive, copy the files to that, then install it in your laptop.
NOTE that you may have to delete some software in order to have room to install the program that copies the partition, on C, and the minimum free space it needs. E.g. The Seagate site has such software, only usable if your drive is Seagate or Maxtor, or there is one drive on your computer of those brands if it's a desktop. As I recall, if you have a laptop, if the new drive in an external enclosure is Seagate, you can use their free software to copy.
However, it's (Max Blast) a crippled (reduced features) version of Acronis software - it copies all partitions on the original drive - you can't select only one of them.
If you don't want a D partition you have to delete it before you use the software.
If this drive is on a brand name computer, if the computer still has it's orginal brand name software installtion on it, all brand name computers orginally come with two partitions on the single hard drive, and the D partition is much smaller than C - only a bit bigger than it takes to hold data the builder installed on it. The data in the D partition should not be deleted, unless you have Recovery disk set for your model - it may be a Recovery partition with data on it so you can re-load your original software if you need to.