7 Replies Latest reply on Feb 5, 2011 10:34 AM by gredhead

    Windows 7 Ultra x64, X25-M 80 gb SSD - where did all the space go?

    gredhead

      I have a new system with Windows 7 ultra x64 and an Intel X25-M 80 gb SSD.  When I look at the SSD (C:) in windows explorer or do a rt-clk properties, it shows that there are 38.7 gb of 74.4 gb free.  But on C: there were only 6 folders (NVIDIA, PerfLogs, Program Files, Program Files (86), Users, and Windows).  But adding the size of all 6 folders, its less than 2 gb.  Allowing the view of hidden files shows Program Data folder, but its only another 117 mb.

       

      What the heck is taking up so much space, and why doesn't it appear in explorer?

        • 1. Re: Windows 7 Ultra x64, X25-M 80 gb SSD - where did all the space go?
          DuckieHo

          That's odd.... Write click the C: drive under My Computer and check the disk usage there.  A standard Windows 7 install will use 10-15GB excluding the Paging File and Hibernation. 

           

           

          Speaking of which, if this is a desktop.... you can probably disable the Hibernation function.   Hibernation requires disk space equal to your RAM size.  (i.e. If your computer has 8GB RAM, the Hibernation file will be 8GB.)  Hibernation is Suspend to Disk and most users rather use Suspend to RAM since power draw/outages is not usually an issue.

           

          If you still are "missing space", try running WinDirStat: http://windirstat.info   It provides a graphical breakdown of your disk usage by file type and directories.    

          • 2. Re: Windows 7 Ultra x64, X25-M 80 gb SSD - where did all the space go?
            gredhead

            Well, I had used windirstat years ago when a coworker shared it, but had forgotten all about it.

             

            Windirstat shows that <files>, which are system files, take up 21 gb.  Maybe this is paging and hibernation - they don't show with explorer, even with hidden files shown.  Then, windirstat shows that the "windows" folder takes up 13.5 gb, although explorer shows this folder is only 6.5 mb (NOT gb).

             

            So, what gives, and how do I see what is really there? - thanks for the help

            • 3. Re: Windows 7 Ultra x64, X25-M 80 gb SSD - where did all the space go?
              gredhead

              Just right clicked / expand <files> in windirstat, and there are 2 files - pagefile.sys of 21 gb and hiberfile.sys of 12 gb, so that is where all the space went.  And, I have 12 gb of RAM, so I guess that explains the size of the hiberfile.

               

              But, any guidance on setting the pagefile size, and what the optimum is?  That just seems excessive.

               

              Also seems that if I say show hidden files they should show up.

               

              Thanks so much for the reminder on windirstat - gredhead

              • 4. Re: Windows 7 Ultra x64, X25-M 80 gb SSD - where did all the space go?
                mistermokkori

                gredhead wrote:

                 

                Also seems that if I say show hidden files they should show up.

                 

                they're system files, so you also need to uncheck 'hide protected operating system files'.

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                • 5. Re: Windows 7 Ultra x64, X25-M 80 gb SSD - where did all the space go?
                  redux

                  I would disable the page file altogether. (Based on 12Gb of RAM and on the assumption you are not running any apps that specifically need it. I have 8GB of RAM with no page file and have had no problems not using it.)

                   

                  Next up disable hibernation to free up the RAM space on the SSD.

                   

                  I also disable system restore and delete the restore files. (With Win 7 it is easier to create a system image for back up, which is more comprehensive than system restore. (System restore will only restore drivers, a system image back up everything).

                   

                  As your installation of Win 7(or Vista) for that matter ages over time you will see that the winsxs folder grows uncontrollably. I’ve seen it above 10GB and it can get even larger. There is nothing that can be done to reduce its size, so the space saving tips above will become more important over time.

                  1 of 1 people found this helpful
                  • 6. Re: Windows 7 Ultra x64, X25-M 80 gb SSD - where did all the space go?
                    DuckieHo

                    gredhead wrote:

                     

                    Just right clicked / expand <files> in windirstat, and there are 2 files - pagefile.sys of 21 gb and hiberfile.sys of 12 gb, so that is where all the space went.  And, I have 12 gb of RAM, so I guess that explains the size of the hiberfile.

                     

                    But, any guidance on setting the pagefile size, and what the optimum is?  That just seems excessive.

                     

                    Also seems that if I say show hidden files they should show up.

                     

                    Thanks so much for the reminder on windirstat - gredhead

                    Disable Hibernation feature: http://support.microsoft.com/kb/920730

                     

                     

                    Paging File is a bit more subjective.  Some application are known to crash without one but a lot of home desktop users have reported no issues without one.  I personally run 6GB RAM with 1GB virtual memory.

                    • 7. Re: Windows 7 Ultra x64, X25-M 80 gb SSD - where did all the space go?
                      gredhead

                      Great Great Great - thanks DuckieHo.  Found this article (see page3), which helped in moving the pagefile to non-SSD disk, and reducing size.  The settings are really buried.  Reboot, and got my 12 GB SSD space back.  But the advice in that article for using alt-shift-enter with cmd to turn off hibernate does not work.  Back to your last post, your link on hibernate, and the rt-clk cmd, run as administrator, worked like a champ.  I had previously turned sleep and hibernate to "never," but that didn't help.  Turning it off from admin cmd, rebooting, and I have all my SSD C: space back - only total of 15.6gb used now.  Ran windirstat one more time just to see.

                       

                      thanks again