The most important utility in this section is my own free bootable Data Recovery CD/USB. This allows memory testing, checking and managing disks, recovering data from unbootable disks or deleted partitions, and even resetting Windows passwords.
Tip: keyboard shortcut Ctrl+F searches in the page contents.
Additional reading:Analyze crash dumps with WhoCrashed
Check memory modules with Memtest86+
Last known good configuration in Windows
Safe Mode in Windows
Low-resolution video (VGA Mode) in Windows
Reliability Monitor in Windows
Data Recovery CD/USB