New files in drives take twice as much space

[aminmehdipour2014]

whenever i get,install,copy or in general make a new file in my drives they take up twice as much space from the my computer screen, if i see the properties of the files themselves it's the correct size but it takes up twice as much space on the drive. it only happens in drives other than C so i guessed that it's because windows is compressing the files in those NTFS drives and it keeps both versions. but the files keep taking twice as much size for some time,even after it has seemingly finished compressing, sometimes it goes away on its own and sometimes it stays, restarting seems to fix it. am i right? is there anyway to get rid of this without deactivating the NTFS compression?

 

[gdmaclew]

NTFS compression only happens if you ask for it. It is not turned on by default.

 

[jasonkaler]

whenever i get,install,copy or in general make a new file in my drives they take up twice as much space from the my computer screen, if i see the properties of the files themselves it's the correct size but it takes up twice as much space on the drive. it only happens in drives other than C so i guessed that it's because windows is compressing the files in those NTFS drives and it keeps both versions. but the files keep taking twice as much size for some time,even after it has seemingly finished compressing, sometimes it goes away on its own and sometimes it stays, restarting seems to fix it. am i right? is there anyway to get rid of this without deactivating the NTFS compression?

What size files are you dealing with?
Drives are organized into clusters and a cluster is the single smallest unit that can be allocated.
So if your cluster size is 4KB, then even a file of 10 byes in size will take 4KB as it occupies 1 cluster.

You'll see an option for that when you format a disk
https://i.rbt.asia/g/image/1496/25/1496257842416.png

 

[aminmehdipour2014]

NTFS compression only happens if you ask for it. It is not turned on by default.

i don't remember turning it on, certainly not on all my 3 drives. it was just there and it was saving like 20-40 gigs so i let it slide.
but right now to install a game that's 40 gigs i have to have 80 gigs available on drive so it's a pain in the ass

 

[RolandJS]

Are you "BitLocker-ing" and compressing your stuff on "drive C"? If so, ensure you are making non-Windows-encrypting, non-Windows-compressing, full images of your stuff onto external media. Let a 3rd party program do the image-compressing.