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Windows 7: What is \\.\C:\ ?

31 Aug 2011   #21

Windows 7 Home Premium 32bit, Linux Mint Julia, in dual boot mode

A misunderstanding. I should have stated: virus definitions 1.111.1162.0
Windows Update gives no updates.

My System SpecsSystem Spec
31 Aug 2011   #22

Microsoft Community Contributor Award Recipient

Win 7 Home Premium 64bit Ver 6.1.7600 Build 7601 - SP1

Okay. Hmmm, by this account it looks like I am a little behind.
What is \.\C:\  ?-1mse.jpg

Just got it, 1162

My System SpecsSystem Spec
01 Sep 2011   #23

Windows 7 Ultimate x64 SP1

I've noticed this \\.\C:\ entry on my MSE quick scan's which take a while to scan, I initially thought it was due to me partitioning my drive & using Active@ Kill Disk to wipe it, but maybe it was due to a new MSE anti-malware engine upgrade, not sure?

At least I'm not the only one getting it, thought my MSE was messed up.
My System SpecsSystem Spec

01 Sep 2011   #24

Windows 7 Home Premium 32bit, Linux Mint Julia, in dual boot mode

See my last post above (permalink #19): since the virus definition update of MSE mentioned there it has disappeared again mysteriously and is not seen any longer.
My System SpecsSystem Spec
02 Sep 2011   #25


Quote   Quote: Originally Posted by marsmimar View Post
are these malware scans scanning my C: drive twice? Once by going through the file system and once by not going through the file system?
Not really, By directly accessing the disk through the Win32 Device namespace it allows MSE to bypass device filters also device drivers and any COM based Namespace Extensions that may be filtering filesystem output or showing virtual folders such as e.g. 'C:\Windows\assembly' which is a COM Namespace Extension that shows file output differently to the actual disk directory layout

I think the output of MSE is just showing C:\ when internally it's actually using \\?\C:\ the entire time which would make sense using the disk directly via \\?\C:\ as there are many layers where this output could be hooked or filtered to hide files otherwise.
My System SpecsSystem Spec

 What is \\.\C:\ ?

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