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Windows 7: What are pmxdrv.sys, pwdrvio.sys and pwdspio.sys services in Autoruns?

12 Feb 2016   #1

Microsoft Windows 7 Home Premium 64-bit SP1
What are pmxdrv.sys, pwdrvio.sys and pwdspio.sys services in Autoruns?

When I run Autoruns and show everything, under HKLM\System\CurrentControlSet\Services I have the following 3 entries with no description or publisher: pmxdrv.sys, pwdrvio.sys and pwdspio.sys.

I've Googled and didn't find much. When I right click on the entries in Autoruns and choose VirusTotal they show nothing found.

I was wondering if anybody had seen these files/services before and could shed some information on them. Right-click on pmxdrv.sys and choose Malwarebytes scan shows no infection.

Thanks in advance for any replies.

My System SpecsSystem Spec
12 Feb 2016   #2

Windows 10 Professional x64

Those are parts of the MiniTool Partition Wizard.
My System SpecsSystem Spec
12 Feb 2016   #3

Windows 7 Home Premium 64bit 6.1 Build 7601 (SP1)

Quote   Quote: Originally Posted by TE7 View Post
I've Googled and didn't find much.
The pw's appear to be from MiniTool Partition Wizard, but just guessing I'd say the pm is Partition Magic i.e. that you have been fiddling with partition tools on your PC.

EDIT: Laith is quicker-on-the-draw than I am!
My System SpecsSystem Spec

12 Feb 2016   #4

Microsoft Windows 7 Home Premium 64-bit SP1

Thanks. Yes I've used the MiniTool Partition Wizard. I use the Partition Wizard regularly and I think I've tried Partition Magic at least once with my system. I appreciate the quick responses. Thanks again.
My System SpecsSystem Spec
19 Mar 2018   #5

Win7 Ultimate x64, ArchLinux

I have just looked around for ages where pmxdrv.sys is from. I am necroing this to tell anyone else who might stumble here that:

pmxdrv.sys is a component of the INTEL-SA-00086 Detection Tool included in in case anyone else is wondering where it came from. That is the Hyperthreading Bug detection Tool. Possibly included in other Intel tools.
My System SpecsSystem Spec

 What are pmxdrv.sys, pwdrvio.sys and pwdspio.sys services in Autoruns?

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