Problème ou pas dans mon ordi ?

Bonjour, je trouve que mon ordi est lent depuis quelques jours. j'ai fait un scan mais n'y connait pas grand chose. quelqu'un pourrait il prendre un peu de son temps pour lire mon scan et me dire s'il y a un problème ? je vous en remercie d'avance !!!

Avira AntiVir Personal
Report file date: mardi 18 novembre 2008 09:12

Scanning for 1038838 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: SYSTEM
Computer name: NOM-CA75E8B16A3

Version information:
BUILD.DAT : 8.2.0.336 16933 Bytes 30/10/2008 11:40:00
AVSCAN.EXE : 8.1.4.7 315649 Bytes 26/06/2008 09:57:53
AVSCAN.DLL : 8.1.4.0 40705 Bytes 26/05/2008 08:56:40
LUKE.DLL : 8.1.4.5 164097 Bytes 12/06/2008 13:44:19
LUKERES.DLL : 8.1.4.0 12033 Bytes 26/05/2008 08:58:52
ANTIVIR0.VDF : 7.1.0.0 15603712 Bytes 27/10/2008 08:09:33
ANTIVIR1.VDF : 7.1.0.56 411136 Bytes 09/11/2008 08:09:34
ANTIVIR2.VDF : 7.1.0.89 221184 Bytes 16/11/2008 08:09:35
ANTIVIR3.VDF : 7.1.0.98 45568 Bytes 18/11/2008 08:09:35
Engineversion : 8.2.0.31
AEVDF.DLL : 8.1.0.6 102772 Bytes 14/10/2008 11:05:56
AESCRIPT.DLL : 8.1.1.15 332156 Bytes 18/11/2008 08:09:41
AESCN.DLL : 8.1.1.5 123251 Bytes 18/11/2008 08:09:40
AERDL.DLL : 8.1.1.3 438645 Bytes 18/11/2008 08:09:40
AEPACK.DLL : 8.1.3.4 393591 Bytes 18/11/2008 08:09:39
AEOFFICE.DLL : 8.1.0.30 196986 Bytes 18/11/2008 08:09:39
AEHEUR.DLL : 8.1.0.71 1487222 Bytes 18/11/2008 08:09:38
AEHELP.DLL : 8.1.1.3 119157 Bytes 18/11/2008 08:09:37
AEGEN.DLL : 8.1.1.0 319859 Bytes 18/11/2008 08:09:37
AEEMU.DLL : 8.1.0.9 393588 Bytes 14/10/2008 11:05:56
AECORE.DLL : 8.1.4.1 172405 Bytes 18/11/2008 08:09:36
AEBB.DLL : 8.1.0.3 53618 Bytes 14/10/2008 11:05:56
AVWINLL.DLL : 1.0.0.12 15105 Bytes 09/07/2008 09:40:05
AVPREF.DLL : 8.0.2.0 38657 Bytes 16/05/2008 10:28:01
AVREP.DLL : 8.0.0.2 98344 Bytes 18/11/2008 08:09:36
AVREG.DLL : 8.0.0.1 33537 Bytes 09/05/2008 12:26:40
AVARKT.DLL : 1.0.0.23 307457 Bytes 12/02/2008 09:29:23
AVEVTLOG.DLL : 8.0.0.16 119041 Bytes 12/06/2008 13:27:49
SQLITE3.DLL : 3.3.17.1 339968 Bytes 22/01/2008 18:28:02
SMTPLIB.DLL : 1.2.0.23 28929 Bytes 12/06/2008 13:49:40
NETNT.DLL : 8.0.0.1 7937 Bytes 25/01/2008 13:05:10
RCIMAGE.DLL : 8.0.0.51 2371841 Bytes 12/06/2008 14:48:07
RCTEXT.DLL : 8.0.52.0 86273 Bytes 27/06/2008 14:34:37

Configuration settings for the scan:
Jobname..........................: Complete system scan
Configuration file...............: c:\program files\avira\antivir personaledition classic\sysscan.avp
Logging..........................: low
Primary action...................: interactive
Secondary action.................: ignore
Scan master boot sector..........: on
Scan boot sector.................: on
Boot sectors.....................: C:,
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: mardi 18 novembre 2008 09:12

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 'avguard.exe' - '1' Module(s) have been scanned
Scan process 'sched.exe' - '1' Module(s) have been scanned
Scan process 'usnsvc.exe' - '1' Module(s) have been scanned
Scan process 'svchost.exe' - '1' Module(s) have been scanned
Scan process 'alg.exe' - '1' Module(s) have been scanned
Scan process 'dllhost.exe' - '1' Module(s) have been scanned
Scan process 'mcrdsvc.exe' - '1' Module(s) have been scanned
Scan process 'svchost.exe' - '1' Module(s) have been scanned
Scan process 'msnmsgr.exe' - '1' Module(s) have been scanned
Scan process 'svchost.exe' - '1' Module(s) have been scanned
Scan process 'nvsvc32.exe' - '1' Module(s) have been scanned
Scan process 'ehSched.exe' - '1' Module(s) have been scanned
Scan process 'ehrecvr.exe' - '1' Module(s) have been scanned
Scan process 'ctfmon.exe' - '1' Module(s) have been scanned
Scan process 'E_FATIBEE.EXE' - '1' Module(s) have been scanned
Scan process 'qttask.exe' - '1' Module(s) have been scanned
Scan process 'Domino.exe' - '1' Module(s) have been scanned
Scan process 'VMSnap23.exe' - '1' Module(s) have been scanned
Scan process 'GamerOSD.exe' - '1' Module(s) have been scanned
Scan process 'rundll32.exe' - '1' Module(s) have been scanned
Scan process 'explorer.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!
Master boot sector HD1
[INFO] No virus was found!
[WARNING] System error [21]: Le périphérique n'est pas prêt.
Master boot sector HD2
[INFO] No virus was found!
[WARNING] System error [21]: Le périphérique n'est pas prêt.
Master boot sector HD3
[INFO] No virus was found!
[WARNING] System error [21]: Le périphérique n'est pas prêt.
Master boot sector HD4
[INFO] No virus was found!
[WARNING] System error [21]: Le périphérique n'est pas prêt.

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

Starting to scan the registry.
The registry was scanned ( '56' files ).

Starting the file scan:

Begin scan in 'C:\'
C:\pagefile.sys
[WARNING] The file could not be opened!

End of the scan: mardi 18 novembre 2008 09:32
Used time: 20:21 Minute(s)

The scan has been done completely.

4375 Scanning directories
198884 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
198883 Files not concerned
7880 Archives were scanned
5 Warnings
0 Notes