Desinfecter mon pc

bonsoir je vous demande de l'aide sur un probléme le voila :le scaner avira antivir m'a detecter 2 warnings que dois je faire . et voila lerapport:

Avira AntiVir Personal
Report file date: 19 سبتمبر, 2008 19:48

Scanning for 1626815 virus strains and unwanted programs.

Licensed to: Avira AntiVir PersonalEdition Classic
Serial number: 0000149996-ADJIE-0001
Platform: Windows XP
Windows version: (Service Pack 3) [5.1.2600]
Boot mode: Normally booted
Username: FAMILLE_2
Computer name: PC-86139DD81DD9

Version information:
BUILD.DAT : 8.1.0.331 16934 Bytes 12-08-2008 11:46:00
AVSCAN.EXE : 8.1.4.7 315649 Bytes 26-06-2008 08:57:53
AVSCAN.DLL : 8.1.4.0 40705 Bytes 26-05-2008 07:56:40
LUKE.DLL : 8.1.4.5 164097 Bytes 12-06-2008 12:44:19
LUKERES.DLL : 8.1.4.0 12033 Bytes 26-05-2008 07:58:52
ANTIVIR0.VDF : 6.40.0.0 11030528 Bytes 18-07-2007 10:33:34
ANTIVIR1.VDF : 7.0.5.1 8182784 Bytes 24-06-2008 13:54:15
ANTIVIR2.VDF : 7.0.6.153 3341312 Bytes 12-09-2008 14:40:33
ANTIVIR3.VDF : 7.0.6.187 216576 Bytes 19-09-2008 17:43:46
Engineversion : 8.1.1.34
AEVDF.DLL : 8.1.0.5 102772 Bytes 25-02-2008 09:58:21
AESCRIPT.DLL : 8.1.0.76 319867 Bytes 19-09-2008 17:44:54
AESCN.DLL : 8.1.0.23 119156 Bytes 10-07-2008 12:44:49
AERDL.DLL : 8.1.1.2 438644 Bytes 19-09-2008 17:44:46
AEPACK.DLL : 8.1.2.1 364917 Bytes 15-07-2008 12:58:35
AEOFFICE.DLL : 8.1.0.25 196986 Bytes 19-09-2008 17:44:32
AEHEUR.DLL : 8.1.0.59 1438071 Bytes 19-09-2008 17:44:26
AEHELP.DLL : 8.1.0.15 115063 Bytes 10-07-2008 12:44:48
AEGEN.DLL : 8.1.0.36 315764 Bytes 17-09-2008 14:41:11
AEEMU.DLL : 8.1.0.7 430452 Bytes 31-07-2008 08:33:21
AECORE.DLL : 8.1.1.11 172406 Bytes 17-09-2008 14:40:54
AEBB.DLL : 8.1.0.1 53617 Bytes 10-07-2008 12:44:48
AVWINLL.DLL : 1.0.0.12 15105 Bytes 09-07-2008 08:40:05
AVPREF.DLL : 8.0.2.0 38657 Bytes 16-05-2008 09:28:01
AVREP.DLL : 8.0.0.2 98344 Bytes 17-09-2008 14:40:45
AVREG.DLL : 8.0.0.1 33537 Bytes 09-05-2008 11:26:40
AVARKT.DLL : 1.0.0.23 307457 Bytes 12-02-2008 08:29:23
AVEVTLOG.DLL : 8.0.0.16 119041 Bytes 12-06-2008 12:27:49
SQLITE3.DLL : 3.3.17.1 339968 Bytes 22-01-2008 17:28:02
SMTPLIB.DLL : 1.2.0.23 28929 Bytes 12-06-2008 12:49:40
NETNT.DLL : 8.0.0.1 7937 Bytes 25-01-2008 12:05:10
RCIMAGE.DLL : 8.0.0.51 2371841 Bytes 12-06-2008 13:48:07
RCTEXT.DLL : 8.0.52.0 86273 Bytes 27-06-2008 13:34:37

Configuration settings for the scan:
Jobname..........................: Local Drives
Configuration file...............: c:\program files\avira\antivir personaledition classic\alldrives.avp
Logging..........................: low
Primary action...................: interactive
Secondary action.................: ignore
Scan master boot sector..........: on
Scan boot sector.................: on
Boot sectors.....................: C:, D:, E:,
Process scan.....................: on
Scan registry....................: on
Search for rootkits..............: off
Scan all files...................: Intelligent file selection
Scan archives....................: on
Recursion depth..................: 20
Smart extensions.................: on
Macro heuristic..................: on
File heuristic...................: medium

Start of the scan: 19 سبتمبر, 2008 19:48

The scan of running processes will be started
Scan process 'avscan.exe' - '1' Module(s) have been scanned
Scan process 'avcenter.exe' - '1' Module(s) have been scanned
Scan process 'avgnt.exe' - '1' Module(s) have been scanned
Scan process 'wuauclt.exe' - '1' Module(s) have been scanned
Scan process 'wuauclt.exe' - '1' Module(s) have been scanned
Scan process 'WLLoginProxy.exe' - '1' Module(s) have been scanned
Scan process 'iexplore.exe' - '1' Module(s) have been scanned
Scan process 'GoogleDesktop.exe' - '1' Module(s) have been scanned
Scan process 'TeaTimer.exe' - '1' Module(s) have been scanned
Scan process 'msnmsgr.exe' - '1' Module(s) have been scanned
Scan process 'GoogleToolbarNotifier.exe' - '1' Module(s) have been scanned
Scan process 'ctfmon.exe' - '1' Module(s) have been scanned
Scan process 'RTHDCPL.exe' - '1' Module(s) have been scanned
Scan process 'igfxpers.exe' - '1' Module(s) have been scanned
Scan process 'GoogleDesktop.exe' - '1' Module(s) have been scanned
Scan process 'hkcmd.exe' - '1' Module(s) have been scanned
Scan process 'igfxtray.exe' - '1' Module(s) have been scanned
Scan process 'GoogleDesktop.exe' - '1' Module(s) have been scanned
Scan process 'explorer.exe' - '1' Module(s) have been scanned
Scan process 'alg.exe' - '1' Module(s) have been scanned
Scan process 'MDM.EXE' - '1' Module(s) have been scanned
Scan process 'GoogleUpdaterService.exe' - '1' Module(s) have been scanned
Scan process 'avguard.exe' - '1' Module(s) have been scanned
Scan process 'sched.exe' - '1' Module(s) have been scanned
Scan process 'spoolsv.exe' - '1' Module(s) have been scanned
Scan process 'svchost.exe' - '1' Module(s) have been scanned
Scan process 'svchost.exe' - '1' Module(s) have been scanned
Scan process 'svchost.exe' - '1' Module(s) have been scanned
Scan process 'svchost.exe' - '1' Module(s) have been scanned
Scan process 'svchost.exe' - '1' Module(s) have been scanned
Scan process 'lsass.exe' - '1' Module(s) have been scanned
Scan process 'services.exe' - '1' Module(s) have been scanned
Scan process 'winlogon.exe' - '1' Module(s) have been scanned
Scan process 'csrss.exe' - '1' Module(s) have been scanned
Scan process 'smss.exe' - '1' Module(s) have been scanned
35 processes with 35 modules were scanned

Starting master boot sector scan:
Master boot sector HD0
[INFO] No virus was found!

Start scanning boot sectors:
Boot sector 'C:\'
[INFO] No virus was found!
Boot sector 'D:\'
[INFO] No virus was found!

Starting to scan the registry.
The registry was scanned ( '57' files ).

Starting the file scan:

Begin scan in 'C:\'
C:\pagefile.sys
[WARNING] The file could not be opened!
C:\Program Files\Google\Google Desktop Search\GoogleGadgetPluginIEWin.cab
[0] Archive type: CAB (Microsoft)
--> install.inf
[WARNING] No further files can be extracted from this archive. The archive will be closed
Begin scan in 'D:\'
Begin scan in 'E:\'
Search path E:\ could not be opened!
System error [21]: Le périphérique n'est pas prêt.

End of the scan: 19 سبتمبر, 2008 22:39
Used time: 2:51:25 Hour(s)

The scan has been done completely.

3645 Scanning directories
241879 Files were scanned
0 viruses and/or unwanted programs were found
0 Files were classified as suspicious:
0 files were deleted
0 files were repaired
0 files were moved to quarantine
0 files were renamed
1 Files cannot be scanned
241878 Files not concerned
1371 Archives were scanned
2 Warnings
0 Notes