Page 256 - Windows 10 May 2019 Update The Missing Manual: The Book That Should Have Been in the Box

Any file you copy into a compressed folder or disk is

compressed automatically. (If you only move it into such a folder
from elsewhere on the disk, however, it stays compressed or
uncompressed—whichever it was originally.)

There’s only one downside to all this: You don’t save a lot of disk space
using NTFS compression (at least not when compared with zip

compression, described in the next section). Even so, if your hard drive is
anywhere near full, it might be worth turning on NTFS compression. The
space you save could be your own.

Compressing files, folders, or disks

To turn on NTFS compression, right-click the icon for the file, folder, or
disk whose contents you want to shrink; from the shortcut menu, choose
Properties. Proceed as shown in Figure 3-19.