Windows C space constantly rising

Disable hibernate for now Click Start -> Type CMD -> Right Click on CMD and Run as administrator then run the command powercfg -h off then reboot this will remove the hiberfil.sys and not allow you to hibernate. You could also try adjusting the Pagefile size if it is really large.

Your problem is more than likely the Winsxs folder which grows over time as you use more software it keeps multiple copies of DLL's etc for maximum software support.

The main cause for the constant grow of used disk space is not the constant swap-partition, or (if you do not install any software) C:\Program Files\ but the WinSxS-Folder:

Why does the /winsxs folder grow so large, and can it be made smaller?