Blue Screen

Introduction

Note: before you can run Bluescreen on Windows 9x, you must copy \winnt\system32\ntoskrnl.exe from a Windows 2000 system to your \Windows directory. 
Simply copy Sysinternals BLUESCRN.SCR to your \system32 directory if on Windows NT/2K, or 
\Windows\System directory if on Windows 9x. Right click on the desktop to bring up the Display settings dialog and then select the "Screen Saver" tab. 
Use the pull down list to find "Sysinternals Bluescreen" and apply it as your new screen saver. Select the "Settings" button to enable fake disk activity, which adds an extra touch of realism! 

Direct download: Blue Screen