I would like to expand Drive C:\ in Disk Management

[SrLoren]

I have plenty of unallocated space. How do I do that?

 

[killakallies]

What version of Windows are you running? (XP,Vista,7,8,8.1)

 

[Reyaz123]

If you have unallocated space in the same single hard drive, you can expand the drive c:
Open disk management
Right click on drive c:, select extend volume and enter your values you want to expand it by
Finish

 

[JackNaylorPE]

If you have no partitions behind it, it's pretty easy to do.

If you don't you will have to remove or shrink the partition behind it.

Disk management will handle that scenario also but it's easier with something like Easus