| A | B |
| 32-Bit Flat Memory Mode | A protected processing mode used by Windows NT/2000/XP to process programs written in 32-bit code early in the boot process. |
| Advanced Options Menu | A Windows 2000/XP menu that appears when you press F8 when Windows starts. The menu can be used to troubleshoot problems when loading Windows 2000/XP. |
| Blue Screen of Death (BSOD) | A Windows NT/2000/XP error that displays against a blue screen and causes the system to halt. Also called a stop error. |
| Boot.ini | A Windows NT/2000/XP hidden text file that contains information needed to start the boot and build the boot loader menu. |
| Emergency Repair Process | A Windows 2000 process that restores the OS to its state at the completion of a successful installation. |
| Minifile System | In Windows NT/2000/XP, a simplified file system that is started so that Ntldr (NT Loader) can read files from any file system the OS supports. |
| Recovery Console | A Windows 2000/XP command interface utility and OS that can be used to solve problems when Windows cannot load from the hard drive. |
| Stop Error | An error severe enough to cause the operating system to stop all processes. |
| System Restore | A Windows Me/XP utility, similar to the ScanReg tool in earlier versions of Windows, that is used to restore the system to a restore point. Unlike ScanReg, It cannot be executed from a command prompt. |