To install ubuntu in my windows laptop, I need to shrink my disk space into two sections, windows C drive and unspecified space. However, given my 350Gb empty space out of 650Gb in C drive, available shrink space contains only ~4700Mb after defragmentation with program "Auslogics DiskDefrag".
Right now I still don't have enough space for my new ubuntu system. Of course I might try to delete more files, or keep my ubuntu system size as small as a few Gb, but I would like to have at least 250Gb for flexibility and file storage. Would anyone has any explanation on why there are so few available shrink space after defragmentation, and what else I could proceed to maximize my shrink space into 250Gb?
Update : I went through the ubuntu installation and accidentally wipe out the whole windows. So I decided to clean up the whole disk and reinstall windows and ubuntu in an easier manner. Thanks everyone though.
hiberfile.sys
,pagefile.sys
, and such; but those are the typical two. Switch off Hibernation and and all swapping, then reboot, the files should be gone, and that should solve the issue.