The [[powercfg]] [[command-line interface|command]] enables the customization of the hibernation file size. By default, Windows 7 automatically sets the size of the hibernation file to 75% of a computer's total physical memory. The operating system also compresses the contents of memory during the hibernate process to minimize the possibility that the contents exceeds the default size of the hibernation file.<ref name="Hibernation">{{cite web |url=http://download.microsoft.com/download/7/E/7/7E7662CF-CBEA-470B-A97E-CE7CE0D98DC2/HiberFootprint.docx |title=Reducing the Disk Footprint for Windows 7 Hibernation |date=September 15, 2009 |author=[[Microsoft]] |format=DOCX |access-date=June 26, 2015 |archive-date=November 6, 2015 |archive-url=https://web.archive.org/web/20151106072233/http://download.microsoft.com/download/7/E/7/7E7662CF-CBEA-470B-A97E-CE7CE0D98DC2/HiberFootprint.docx |url-status=live }}</ref>