|Tell us the make and model of your brand name system, or if you have a generic desktop system, the make and model of the mboard. |
The specific model of a brand name system is shown on a label on the outside of the case somewhere, or it can often be determined by going to the brand name's web site and loading a program they have available, if Windows is still working, on the subject computer.
For Dell computers, they have a Service Tag number - the specific model can be determined by using that on their site, or can often be determined there automatically by you downloading some software, if Windows is still working, on the subject computer. The Service Tag number should be on a label on the outside of the case, probably on the bottom on a laptop, on the back on a desktop, and is often also shown in the bios Setup.
The model, sometimes the make, of a mboard in a generic desktop system is usually printed on the mboard's surface in obvious larger characters, often between the slots.
How much free space is on C
and how much free space is on D ?
If you don't have enough free space on either partition....
The easiest way of getting a lot more drive space is to get yourself another hard drive !
If this is a desktop computer, that's easy. Get a much larger hard drive, or just another hard drive.
You DO NOT have to install most programs that did not come with Windows on C. If you don't choose the Express install or similar default choice , you can use Custom install or similar to install the program on a different hard drive partition drive letter, such as on a second hard drive. You could un-install programs, then install them again on another hard drive partition on a second hard drive.
You can copy anything that isn't a program, e.g. music. movies, pictures, to a partition on a second hard drive, and delete the original files.
If this is a laptop or netbook computer, get a larger hard drive.
In either case, there are free programs available from the maker of the brand of your brand of hard drive's web site that can copy the entire data contents of your existing drive to a larger hard drive. You then can swap the drive you boot the computer with and use a partition on the larger hard drive instead of one on the 80gb drive for the Windows partition.
If this is a laptop, if you don't already have one, you would also need to buy an external drive enclosure ($25 or less and up) or another type of adapter ($20 or less and up) to connect the larger drive to the laptop, then swap drives after the data has been copied.
Look at System Information.
E.g. Start - Run - type: msinfo32 , click OK or press Enter.
On the right side, what does it say beside Windows Directory ?
If it says D:\Windows, your Windows installation is on D, not C. You need to make D bigger, but deleting the C partition and adding only 4.96gb more to D by using a third party "partition Manipulation" program (see below) isn't going to help for long, if you keep doing what you've been doing, if D already doesn't have enough free space on it.
If it says C:\Windows, your Windows installation is on C.
If the D partition has a lot of free space, you can install and use a third party "partition manipulation" program to re-size D smaller on the side next to the C partition to free up un-allocated space, then re-size C larger to use the unallocated space. E.g. the freeware Easeus Partition Master Home Edition.