Avira gives 54 warnings!

> Hello,
> After having scanned certain disc for rootkits and found nothing,
> Avira advised me to do a (rootkit)scan of the system partition. I made
> the scan and was somewhat alarmed to find 54 (!) warnings in the
> scanreport. Would somebody please give his/her comment on this?
> --------------------
> extracts of report
> --------------------
> ====================================
> Avira AntiVir Personal
> Report file date: zaterdag 20 juni 2009 09:31
> Scanning for 1478190 virus strains and unwanted programs.
> Licensee : Avira AntiVir Personal - FREE Antivirus
> Platform : Windows Vista
> Windows version : (Service Pack 1) [6.0.6001]
> Boot mode : Normally booted
> Configuration settings for the scan:
> Jobname.............................: Rootkit search
> Configuration file..................: C:\ProgramData\Avira\AntiVir
> Desktop\PROFILES\rootkit.avp
> Logging.............................: high
> Primary action......................: interactive
> Secondary action....................: ignore
> Scan master boot sector.............: on
> Scan boot sector....................: on
> Process scan........................: off
> Scan registry.......................: off
> Search for rootkits.................: on
> Integrity checking of system files..: off
> Scan all files......................: All files
> Scan archives.......................: on
> Recursion depth.....................: 20
> Smart extensions....................: on
> Macro heuristic.....................: on
> File heuristic......................: high
> Deviating risk categories...........: +APPL,+JOKE,+SPR,
> Expanded search settings............: 0x00300922
> C:\System Volume Information\
> [WARNING] System error [5]: Toegang geweigerd.
> --------------------------------
> C:\Windows\System32\
> 7B296FB0-376B-497e-B012-9C450E1B7327-2P-0.C7483456-A289-439d-8115-601632D005A0
> [WARNING] The file could not be opened!
> [NOTE] An attempt is being made to scan the file with the aid
> of the snapshot driver.
> 7B296FB0-376B-497e-B012-9C450E1B7327-2P-1.C7483456-A289-439d-8115-601632D005A0
> [WARNING] The file could not be opened!
> [NOTE] An attempt is being made to scan the file with the aid
> of the snapshot driver.
> ----------------------------------
> C:\Windows\System32\catroot2\
> edb.log
> [WARNING] The file could not be opened!
> [NOTE] An attempt is being made to scan the file with the aid
> of the snapshot driver.
> ----------------------------------
> End of the scan: zaterdag 20 juni 2009 09:54
> Used time: 23:40 Minute(s)
> The scan has been done completely.
> 14841 Scanned directories
> 152698 Files were scanned
> 0 Viruses and/or unwanted programs were found
> 0 Files were classified as suspicious
> 0 files were deleted
> 0 Viruses and unwanted programs were repaired
> 0 Files were moved to quarantine
> 0 Files were renamed
> 53 Files cannot be scanned
> 152645 Files not concerned
> 1381 Archives were scanned
> 54 Warnings
> 51 Notes
> 541839 Objects were scanned with rootkit scan
> 0 Hidden objects were found
> ======================================
> Thanks in advance,
> Massimo
> ++++++++++++++++++++++

>the warnings are Windows protected files that Avira can't probe. Avira won't
>answer Vista's question to 'Confirm or Deny' so it moves to the next file
>unanswered and gives you a warning.