When I reinstall Vista or Windows 7, I always do one thing in common for all drives except system file drives. I enable NTFS compression. If you are using this feature already, you might have noticed a huge gain in your hard disk space.
Before we tell you how to enable the NTFS file compression, we want to make two things very clear. First, the feature is not of much use for media files. That is, if you enable the NTFS compression for multimedia files like MP3 and Divx, note that Windows can’t compress these files any further. Second, enabling NTFS compression won’t affect your PC’s performance. If you think that this will slow down your system, believe me, you won’t see a noticeable change in the performance.
You must be using the NTFS file system to enable NTFS compression. NTFS compression is not available for FAT, FAT32 and other file systems.
Enable NTFS compression in Windows 7/Vista
You need to follow these steps to enable NTFS Compression:
Step 1: Right-click on any folder or file or drive and choose Properties. Click the Advanced button.
To compress a drive, check the box named “Enable disk compression to save disk space” which shows up under the General tab of the Properties dialog.
Step 2: Check the box named Compress contents to save disk space.
Step 3: In the next screen, select the option called Apply changes to this folder, subfolders and files. Choose this option only if you like to compress the folders inside and the files within.
Step 4: Click the OK button to start the compression. It might take a few minutes depending on the size of the file or folder.
Step 5: Once Windows finishes its task, you may open the Properties dialog to see how much disk space you have gained just now.
If you’re on Windows 10, we recommend you go through our how to compress Windows 10 install files and folders guide for step-by-step instructions.