Pretty much any scan. The weirdest thing is it happens for months for me now.
Windows 7 x64 without any security software except the MS built-in ones. Monthly MBAM and NOD full scans. The crashing happens every time.
The log file contents:
====== System Information ======
Computer Name: HG1-PC
Log on User: hg1
Memory Size: 15.98 GB.
Windows Directory: C:\Windows
Windows Version: 6.1.7601 x64
CCE Version: 10.0.0.6111
Virus database version: 27777
[01:33:54] Scan started.
[01:33:56] === Start Scan MBR ===
[01:33:56] === Scan MBR Completed ===
[01:33:56] === Start Scan Autorun Entries ===
[01:33:58] === Scan Autorun Entries Completed ===
[01:33:58] === Start Scan Memory ===
[01:34:36] === Scan Memory Completed ===
[01:34:36] === Start Scan Hidden Registry ===