This tutorial will show you how to specify the hibernation file (hiberfil.sys) type to be reduced or full in Windows 10 and Windows 11.
Hibernation files are used for hybrid sleep, fast startup, and standard hibernation (described earlier). There are two types, differentiated by size, a full and reduced size hibernation file. Only fast startup can use a reduced hibernation file.
Hibernation file typehiberfil.sys default sizeSupports
Full40% of physical memoryhibernate, hybrid sleep, fast startup
Reduced20% of physical memoryfast startup
Hibernate is a power-saving S4 state designed primarily for laptops, and might not be available for all PCs (PCs with InstantGo don't have the hibernate option). While sleep puts your work...