Hard drive C space suddenly becomes smaller 50G

1, temporary memory paging file, can be adjusted by right-clicking on My Computer--〉 properties, Advanced page, Performance Settings button-〉 advanced, virtual memory change

2,ie temporary files, available via ie--〉 tools, Internet Options-〉 General page, browsing history, setting delete

3, hibernate temporary file, set hibernation function system default hibernation file on C drive, can disable sleep free space, can change hibernation settings

4, the operating system file cache, including the installation file zero file cache, can be deleted by Disk Cleanup, or to the system directory to find the cache directory, the directory of files deleted