csrss.exe_cpu100

depuis quelque jour mon ordinateur rame et cela est du au processus csrss.exe il me bouffe vers 50 % du CPU. Bref voila mon log de hijackthis : Logfile of Trend Micro HijackThis v2.0.2 Scan saved at 00:25:50, on 29/01/2012 Platform: Unknown Windows (WinNT 6.01.3504) MSIE: Unable to get Internet Explorer version! Boot mode: Normal Running processes: C:\Windows\system32\taskhost.exe C:\Windows\system32\Dwm.exe C:\Windows\Explorer.EXE C:\Program Files\Internet Download Manager\IEMonitor.exe C:\Windows\explorer.exe C:\Windows\system32\taskhost.exe C:\Users\black\AppData\Local\Google\Chrome\Application\chrome.exe C:\Users\black\AppData\Local\Google\Chrome\Application\chrome.exe C:\Users\black\AppData\Local\Google\Chrome\Application\chrome.exe C:\Program Files\Internet Download Manager\IDMan.exe C:\Users\black\AppData\Local\Google\Chrome\Application\chrome.exe C:\Windows\system32\SearchFilterHost.exe C:\Users\black\Documents\Downloads\Programs\HiJackThis.exe R0 - HKLM\Software\Microsoft\Internet Explorer\Search,SearchAssistant = R0 - HKLM\Software\Microsoft\Internet Explorer\Search,CustomizeSearch = O2 - BHO: IDM Helper - {0055C089-8582-441B-A0BF-17B458C2A3A8} - C:\Program Files\Internet Download Manager\IDMIECC.dll O4 - HKCU\..\Run: [iDMan] C:\Program Files\Internet Download Manager\IDMan.exe /onboot O23 - Service: Broadcom Wireless LAN Tray Service (wltrysvc) - Broadcom Corporation - C:\Program Files\Broadcom\Broadcom 802.11\WLTRYSVC.EXE -- End of file - 1375 bytes