@shaunmarl
Hi bro! U could try out the following method of getting back some memory on the C: drive:
1. download an app called X-plore from
www.lonelycatgames.com, this is a highly customizable file manager which allows stuff that the usual file manager doesnt
2. Once the app is installed on your fone, go to options-->settings-->make sure u tick all options like show hidden drives and full screen display...
3. Now go to C: drive and expand it
4. Scroll to a folder called "Cache", delete it. Now in the same drive C:, go to folder "dmgr" and delete it also. Check how much space u get
Cheers!