Hey Guys, so i got a file server, running Server 2012 R2.
Its a Virtual Machine, created using Hyper V,
for some reason the C drive size was only 9GB or so, and then there is a DATA drive thats about 1TB large(R:).
The C drive is almost full, so i cant install anything..... i shrinked the Data drive by about 50 gigs, and planned to give it to the C drive, but when i try to extend it using server manager > file and storage services > volumes
i get the error " Error Extending Volume: Size Not Supported".
see attached image for screenshot,
also a side note, i cant delete the R partition either, i get the following error " Error deleting volume: the operation is not allowed on a system or critical partition"