Many computer tech people should know about the utility called SFC (System File Checker) built-in to Windows 98/2000/XP/2003/Vista. This tool can help you scan and restore corrupted Windows system files. Let’s take Event ID 4226 Patcher which patches TCPIP.sys file, which is a system protected file...

Google’s search results pages haven’t changed that much over time and most of the changes were subtle. An useful feature that has been removed was a list of competing search engines you could use if Google’s results weren’t very good. Here’s an example from 2001: “Try...