Drive bigger than C drive

[james142]

I have a new oman laptop. The C drive is smaller than the D drive. D drive 918gb Cdrive 118gb and Edrive 12.7gb. I can't back up my phone because the drive is too small. Can i chnage the Drive to C drive. I can no longer use the C drive as its full. There isn't even that much stuff on there. Its new 

[TheOldMan]

Since the model number is not given, I suspect the C: drive a SSD and the 😧 drive is a regular hard drive.  Tell the backup program to save to the 😧 drive.  Changing the C: drive to a larger SSD is possible but unless you go to a 500GB or 1Tb drive, the same thing will happen again.  Learn how to use the 😧 drive for data storage.

[WAWood]

@james142

Changing the designations of C: and 😧 is a really BAD idea -- as that will cause inumerable stuff to fail, out right!

You CAN use the C: drive -- just not to store large files, like multi-GB backups.  As @TheOldMan indicated, you need to use theD: drive for large data storage.

Also, here are some things you can do to recover some of the "disk" space: from the C: drive 
http://www.tenforums.com/tutorials/3012-disk-cleanup-open-use-windows-10-a.html
http://winaero.com/blog/how-to-clean-up-winsxs-folder-in-windows-10/

Also, the community Win10 Forums has the following suggestions:
https://www.tenforums.com/tutorials/83441-free-up-drive-space-windows-10-a.html