O
- O index, Object IDs
- object context areas, KMDF Data Model, KMDF Data Model
- object contexts, KMDF Data Model–KMDF Data Model, KMDF Data Model, KMDF Data Model
- object handle tracing, Initializing the Kernel and Executive Subsystems
- object headers, Section Objects
- object identifier files (, Master File Table
- object IDs, File Records, Object IDs
- attributes, File Records, Object IDs
- object linking and embedding (OLE), Link Tracking
- object manager, Mount Points, Look-Aside Lists, Section Objects, Section Objects, Initializing the Kernel and Executive Subsystems, Initializing the Kernel and Executive Subsystems
- directory, Section Objects
- initialization, Initializing the Kernel and Executive Subsystems
- look-aside lists and, Look-Aside Lists
- namespace directories, Initializing the Kernel and Executive Subsystems
- reparse points, Mount Points
- section objects, Section Objects
- object manager directory, Section Objects
- Object Viewer (Winobj.exe), Driver Objects and Device Objects, Opening Devices, Backup, Section Objects, Memory Notification Events, Locking
- device names, Driver Objects and Device Objects
- memory resource notifications, Memory Notification Events
- registered file systems, Locking
- section objects, Section Objects
- shadow volumes, Backup
- symbolic links, Opening Devices
- ObjId metadata file, Object IDs
- ObOpenObjectByName function, Explicit File I/O
- OCA (Online Crash Analysis), Online Crash Analysis, Basic Crash Dump Analysis
- OEM fonts, The BIOS Boot Sector and Bootmgr
- OEMs (original equipment manufacturers), Images That Start Automatically
- offline storage, Multiple Data Streams
- OLE (object linking and embedding), Link Tracking
- onecpu element, The BIOS Boot Sector and Bootmgr
- online crash analysis (OCA), Online Crash Analysis, Online Crash Analysis, Analysis of Common Stop Codes
- opaque objects (KMDF), KMDF Data Model
- open devices, Opening Devices–Opening Devices, Opening Devices, Opening Devices, Opening Devices, Opening Devices, Opening Devices
- open files, Shared Memory and Mapped Files, Explicit File I/O
- open mode flags, Opening Devices
- open operations, User-Initiated I/O Cancellation
- OpenEncryptedFileRaw function, Backing Up Encrypted Files
- OpenFileMapping function, Shared Memory and Mapped Files
- operating system errors, Windows Recovery Environment (WinRE)
- operating system files, The BIOS Boot Sector and Bootmgr
- operating system images, Virtual Address Space Layouts
- operating system versions, Online Crash Analysis
- oplock (opportunistic locking), Remote FSDs–Locking, Locking, Locking, Locking
- optical media, Storage Management, UDF
- Optical Storage Technology Association (OSTA), UDF
- optimization software, Robust Performance, Robust Performance
- Optin and Optout modes, No Execute Page Protection
- optionsedit element, The BIOS Boot Sector and Bootmgr
- original equipment manufacturers (OEMs), Images That Start Automatically, Verbose Analysis
- original volumes, Clone Shadow Copies
- OS/2 applications, File Records
- osdevice element, The BIOS Boot Sector and Bootmgr
- OSTA (Optical Storage Technology Association), UDF
- output buffers, IRP Buffer Management–I/O Request to a Single-Layered Driver, IRP Buffer Management, I/O Request to a Single-Layered Driver
- outswapping stacks, Memory Manager Components
- overcommitted resources, Commit Charge and the System Commit Limit
- overlapped flags, Synchronous and Asynchronous I/O
- overlocking, Locking Memory
- overrun detection, Driver Verifier–Driver Verifier, Driver Verifier, Driver Verifier
- overutilized cores, Algorithm Overrides, Thresholds and Policy Settings, Performance Check
- overwriting data, The Change Journal File
- overwriting flash memory, Solid State Disks
- Owner bit (PTEs), Page Tables and Page Table Entries
- owner pages, Log Types, Owner Pages, Owner Pages, Translating Virtual LSNs to Physical LSNs