Mon ordinateur portable devenu très lent.

Mon ordinateur portable est devenu très lent en deux ou trois jours. Je n'ai rien fait de spécial pour arriver à celà.. Que dois-je faire ?

Le log de l'ordinateur pour vous aider.

Microsoft Windows [version 6.0.6000]
Copyright (c) 2006 Microsoft Corporation. Tous droits réservés.

C:\Users\Geneviève>tasklist

Nom de l'image PID Nom de la sessio Numéro de s Utilisation
========================= ======== ================ =========== ============
System Idle Process 0 Services 0 28 Ko
SYSTEM 4 Services 0 11.280 Ko
smss.exe 360 Services 0 576 Ko
csrss.exe 492 Services 0 4.592 Ko
wininit.exe 536 Services 0 3.096 Ko
csrss.exe 548 Console 1 10.184 Ko
services.exe 584 Services 0 5.740 Ko
lsass.exe 596 Services 0 1.840 Ko
lsm.exe 604 Services 0 3.344 Ko
winlogon.exe 684 Console 1 4.708 Ko
svchost.exe 796 Services 0 7.948 Ko
svchost.exe 868 Services 0 6.648 Ko
svchost.exe 924 Services 0 10.472 Ko
svchost.exe 1004 Services 0 21.736 Ko
svchost.exe 1028 Services 0 32.876 Ko
svchost.exe 1184 Services 0 8.472 Ko
svchost.exe 1240 Services 0 38.144 Ko
audiodg.exe 1332 Services 0 10.216 Ko
SLsvc.exe 1372 Services 0 5.552 Ko
svchost.exe 1412 Services 0 9.612 Ko
spoolsv.exe 1824 Services 0 7.360 Ko
svchost.exe 1872 Services 0 13.416 Ko
dwm.exe 1944 Console 1 106.456 Ko
taskeng.exe 1956 Console 1 9.052 Ko
explorer.exe 2008 Console 1 35.884 Ko
MSASCui.exe 528 Console 1 10.136 Ko
igfxtray.exe 600 Console 1 4.240 Ko
hkcmd.exe 972 Console 1 4.688 Ko
igfxpers.exe 1608 Console 1 4.232 Ko
SynTPEnh.exe 1656 Console 1 5.232 Ko
HPWAMain.exe 1484 Console 1 5.404 Ko
WiFiMsg.exe 1832 Console 1 3.980 Ko
QLBCTRL.exe 1352 Console 1 7.028 Ko
hpwuSchd2.exe 960 Console 1 2.896 Ko
jusched.exe 792 Console 1 5.520 Ko
sidebar.exe 1680 Console 1 8.840 Ko
NPSAgent.exe 1952 Console 1 3.692 Ko
lsass.exe 580 Console 1 7.660 Ko
BcmSqlStartupSvc.exe 2060 Services 0 2.556 Ko
svchost.exe 2100 Services 0 3.216 Ko
FsUsbExService.Exe 2140 Services 0 2.872 Ko
feilo.exe 2212 Console 1 4.240 Ko
iviRegMgr.exe 2224 Services 0 2.964 Ko
svchost.exe 2280 Services 0 3.944 Ko
sqlbrowser.exe 2332 Services 0 2.544 Ko
sqlwriter.exe 2356 Services 0 3.992 Ko
svchost.exe 2404 Services 0 5.588 Ko
svchost.exe 2452 Services 0 2.844 Ko
SearchIndexer.exe 2504 Services 0 10.372 Ko
XAudio.exe 2564 Services 0 2.008 Ko
waareos.exe 2580 Console 1 4.416 Ko
hpqwmiex.exe 2592 Services 0 4.360 Ko
rouya.exe 2648 Console 1 4.392 Ko
zooox.exe 2660 Console 1 4.392 Ko
qooox.exe 2728 Console 1 4.396 Ko
WmiPrvSE.exe 2948 Services 0 5.004 Ko
HpqToaster.exe 3452 Console 1 4.604 Ko
taskeng.exe 3920 Services 0 5.364 Ko
wuauclt.exe 1552 Console 1 4.700 Ko
HPHC_Service.exe 3636 Services 0 7.784 Ko
igfxsrvc.exe 3224 Console 1 5.328 Ko
firefox.exe 3632 Console 1 72.608 Ko
cmd.exe 1556 Console 1 2.412 Ko
conime.exe 3680 Console 1 3.596 Ko
WINWORD.EXE 784 Console 1 30.644 Ko
SearchProtocolHost.exe 2132 Services 0 5.772 Ko
SearchFilterHost.exe 1764 Services 0 4.260 Ko
tasklist.exe 2844 Console 1 4.792 Ko
WmiPrvSE.exe 1056 Services 0 5.912 Ko

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