I dual boot my laptop between Ubuntu and Win7. The Win7 partition began at 25GB whereas Ubuntu is 15GB. Win7 used up all its space so I increased the partition size. Then again and again. Now it has 40GB and just filled it up again.
I tried using disk cleanup and deleting all temporary files. That freed up about 15MB. Then I found an article explaining that hibernate in Win7 stores off a file called hiberfil.sys that can grow and grow in size. Here is how to get rid of it:
- run command prompt as Administrator (right-click on its icon)
- type in
powercfg.exe -h off - reboot
- boom! Have 7 GB back
My next laptop will be a Mac.