system32/wdi and trojan or malware

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1

Can someone tell me what is supposed to be in the windows/system32/wdi ?

I have quite a score of these ’ snapshot.etl ’ in various folders such as:

C:\Windows\System32\wdi{533a67eb-9fb5-473d-b884-958cf4b9c4a3}
C:\Windows\System32\wdi{86432a0b-3c7d-4ddf-a89c-172faa90485d}
C:\Windows\System32\wdi{67144949-5132-4859-8036-a737b43825d8}
C:\Windows\System32\wdi{ffc42108-4920-4acf-a4fc-8abdcc68ada4}

The latter can be read by avast and I am wondering if they are trojan or malware.
Is fine to erase these files (snapshot and folders)

Thanks for your support.

2

you are in No- english zone ^^ post it here http://forum.avast.com/index.php?board=4.0

3

suivre ce guide et joignez les journaux demandé …

http://forum.avast.com/index.php?topic=53253.0

AdwCleaner,Malwarebytes,OTL,aswMBR

Vous parlez anglais?

créer un sujet dans la section virus et vers

http://forum.avast.com/index.php?board=4.0