I saw this fie on my computer where it hadn't been there before. Googling it turns up a least one prominent website claiming it's a trojan (that website being averscanner.com) but others make it look like part of Windows. So I'm confused, can anybody help?

I've got files named Policy.vpol in three locations on my system:

C:\ProgramData\Microsoft\Vault\AC658CB4-9126-49BD-B877-31EEDAB3F204\Policy.vpol
C:\Users\All Users\Microsoft\Vault\AC658CB4-9126-49BD-B877-31EEDAB3F204\Policy.vpol
C:\Users\<username>\AppData\Local\Microsoft\Vault\4BF4C442-9B8A-41A0-B380-D4A704DDB28\Policy.vpol

In my case, they are all dated three days after I first powered on this computer. Apparently they were created during my initial config process, when I was still installing Windows Updates.

When I did a search in Windows Explorer, only two of three files showed up. So check to see if you have three Policy.vpol files at the command prompt, like this:

dir c:\policy.vpol /s

Check the directory listing produced by the above command. The files should all have the same date/time and should date to the early days of your machine. They should all be about the same size. I've got two that are 1,496 bytes and one that is 1,486 bytes.

If you see one that is noticeably newer than the others, and/or significantly different in size, run it through a Jotti scan:

http://virusscan.jotti.org/en

I've got five, all but two of which are dated in June of last year (the two others showing dates on December and January) and I've had this computer for longer than that. Two of mine are 1,496 bytes, one of 1,486 bytes and two are 1,478 bytes.

Mine were located in:

C:\ProgramData\Microsoft\Vault\AC658CB4-9126-49BD-B877-31EEDAB3F204

C:\Users\All Users\Microsoft\Vault\AC658CB4-9126-49BD-B877-31EEDAB3F204

C:\Users\(username)\AppData\Local\Microsoft\Vault\4BF4C442-9B8A-41A0-B380-DD4A704DDB28

C:\Windows\System32\config\systemprofile\AppData\Local\Microsoft\Vault\4BF4C442-9B8A-41A0-B380-DD4A704DDB28

C:\Windows\System32\config\systemprofile\AppData\Local\Microsoft\Vault\Builtin.bkup

Jotti didn't find anything on any of them (or some reason it wouldn't access the folders where the last to were located so I copy/pasted them to another location)

Looks like the first three you have are the same as the three I have.

I do not have a C:\Windows\System32\config\systemprofile\AppData\Local\Microsoft\Vault\ folder on my computer.

What operating system are you running? I've got Windows 7 64 bit.

My computer uses Windows 7 Home Premium, which is 64-bit.

>>5
And with reading this post ill start learning code.