It may happen that a program takes up much space but the «size» column says nothing. It should be noted taht such information is not too accurate because some applications may not report their exact size to the operating system. If this column is not shown, then you should click on the settings button above the list and select Details. It can be done manually or by using third-party utilities. Windows 10 allows you not only to move applications in the Storage settings tab but also to uninstall them. Today, you can reduce the size of this file, and it will be used only for quick start of the system. At the same time, the opportunity for quick start of the operating system became inaccessible. Previously, this file could be merely disabled which allowed freeing up the disk space equal to 70% of the RAM volume. In addition, Windows 10 has an updated hibernation function. It should be noted that using this function can free up to 2 Gb in 64-bit systems or about 1.5 Gb in 32-bit systems.

Developers claim that application of this function on quite powerful computers with large amount of RAM will not affect their performance in any way. Windows 10 has got an option called Compact OS allowing to compress system files which reduces the disk space required for the operating system. The Option of Compressing OS Files And Hibernation