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Windows 7: Huge hidden file in system drive

01 Apr 2011   #11

win 7 X64 Ultimate SP1
Shadow Copy?

Could it be shadow copies?

My System SpecsSystem Spec
01 Apr 2011   #12

Win 7 Ult + Starter, XP Pro +Home, 2kAS, Linux Mint 8, SuperOS

The obvious place to check is $Recycle.bin, and RECYCLER, just in case the recycle bin for all users has not been emptied yet, the next place is the $quota file, and virus quarantine files. The browser cache and safe browser bloom are also hidey holes where big files lurk, depending on which browsers are used, they are found in different places.

Very large files are found by defragmenters I recommend Puran defrag for a quick analysis

Puran Defrag Trial and Free Edition Download

Also Easy Clean by Toniarts has a disk usage pie chart which fairly clearly shows where large files are hiding

ToniArts EasyCleaner - Free software downloads and software reviews - CNET
My System SpecsSystem Spec
02 Apr 2011   #13

Windows 7 home premium x64

No, to see everything you also need to 'show system files' , then you can view everything on the drive.
My System SpecsSystem Spec

02 Apr 2011   #14

Win 7 Ult + Starter, XP Pro +Home, 2kAS, Linux Mint 8, SuperOS

Quote   Quote: Originally Posted by cyclic View Post
No, to see everything you also need to 'show system files' , then you can view everything on the drive.
That's not always true - there are files and folders that are superhidden.

Look in:


Yesterday I would have told you that you can see even more hidden stuff if you create a new value called:


and give it a DWORD value of 1,

But I have since realized it would be foolish to give that advice today
My System SpecsSystem Spec
02 Apr 2011   #15
Layback Bear

Windows 7 Pro. 64/SP-1

Clean the $Recycle.bin and see if the yellow goes away.
My System SpecsSystem Spec
04 Apr 2011   #16

Windows 7 HP 64-bit

I gave up and reinstalled. Problem solved. Maybe I had a virus. who knows ... and now I,m rid of it who cares.
I have had enough 'mishaps' to have made things easy for myself to be able to reinstall quite easily, without having lost anything.
I really do wish my mobile broadband dongle would work with linux, I'll be dead and buried before I can rid myself of Mycrapsoft.
Thanks anyway guys for the ideas, Cheers!
My System SpecsSystem Spec
06 Nov 2011   #17

Windows 7 Enterprise SP1 x64
Microsoft VirtualStore

I know this post is closed, but I just had a similar problem and eventually discovered that the cause was the VirtualStore, it may have been the same problem you were having.

Basically, when programs are run with non-administrative priveleges and they try to save files to protected Windows folders in Windows Vista/7 (such as C:\ or C:\Program Files\) they are instead placed inside the 'VirtualStore' folder for that user. This means the files are instead hidden in something like C:\users\[your username]\appdata\local\virtualstore\program files\[your program that created the file]\, usually without any indication to the user that this has occured.

So, while your program might have seemingly saved a big file to C:\file.ext as you requested, it's actually been hidden under your user path above by your OS, and the OS has created a junction point on the C drive named C:\file.ext which points to the real file.
Ideally you're able to delete or move the junction-point file and it will take the real file and the junction point with it, but if it's been created under another username, or if you're not running the delte (or move) command with administrative permission it may not work so simply.
I recommend WinDirStat to track down the weird files, and then searching for them under C:\users\[your username]\appdata\local\virtualstore\ - do a search for VirtualStore and junction points for more info.

Hope that essay helps someone!
My System SpecsSystem Spec

 Huge hidden file in system drive

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