this issues is only seen when setting > scanner setting > scan additional items against heuristics in Malware bytes.
Malwarebyte logs
--------------------
Malwarebytes Anti-Malware (Trial) 1.60.1.1000
www.malwarebytes.org
Database version: v2012.01.13.04
Windows 7 Service Pack 1 x64 NTFS
Internet Explorer 8.0.7601.17514
NAVEENKS :: NAVEENKS04 [administrator]
Protection: Enabled
3/14/2012 10:46:08 PM
mbam-log-2012-03-14 (22-46-08).txt
Scan type: Quick scan
Scan options enabled: Memory | Startup | Registry | File System | Heuristics/Extra | Heuristics/Shuriken | PUP | PUM
Scan options disabled: P2P
Objects scanned: 225425
Time elapsed: 4 minute(s), 30 second(s)
Memory Processes Detected: 1
C:\Windows\Temp\svchost.exe (Trojan.Agent) -> 3996 -> Delete on reboot.
Memory Modules Detected: 0
(No malicious items detected)
Registry Keys Detected: 0
(No malicious items detected)
Registry Values Detected: 0
(No malicious items detected)
Registry Data Items Detected: 0
(No malicious items detected)
Folders Detected: 0
(No malicious items detected)
Files Detected: 3
C:\Users\naveenks\Downloads\cnet2_Xshell4_exe.exe (PUP.CNET.Adware.Bundle) -> No action taken.
C:\Users\naveenks\Downloads\SoftonicDownloader_for_vlc-media-player.exe (PUP.BundleOffer.Downloader.S) -> No action taken.
C:\Windows\Temp\svchost.exe (Trojan.Agent) -> Delete on reboot.
(end)
------------------------------------------------------
OTS logs attached
Combofix logs attached
Can you please help me understand what is going wrong with my laptop?