The book is devoted to the internal structure and operating algorithms of the main components of the Microsoft Windows operating system - Windows Server 2003, Windows XP and Windows 2000 - and the NTFS file system. System mechanisms are examined in detail: dispatching traps and interrupts, DPC, APC, LPC, RPC, synchronization, system worker threads, global flags, etc. All stages of loading the operating system and shutting down its operation are also described. The fourth edition of the book places greater emphasis on in-depth analysis and troubleshooting of problems that cause your operating system to crash or fail to boot. In addition, details of the implementation of support for AMD x64 and Intel IA64 hardware platforms are discussed. The book consists of 14 chapters, a glossary of terms and a subject index. The book is intended for system administrators, developers of serious applications and anyone who wants to understand how the Windows operating system works. The names of all commands, dialog boxes and other interface elements of the operating system are given in both English and Russian. The Fb2 edition is 1.5. Please report errors to [email protected].