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- Fruits And Vegetables


  1. Architecture of Windows NT
  2. AutoPlay
  3. Bill Gates
  4. BitLocker Drive Encryption
  5. Calibri
  6. Cambria
  7. Candara
  8. Chess Titans
  9. ClearType
  10. Consolas
  11. Constantia
  12. Control Panel
  13. Corbel
  14. Criticism of Windows Vista
  15. Dashboard
  16. Desktop Window Manager
  17. Development of Windows Vista
  18. Digital locker
  19. Digital rights management
  20. Extensible Application Markup Language
  21. Features new to Windows Vista
  22. Graphical user interface
  23. Group Shot
  24. ImageX
  25. INI file
  26. Internet Explorer
  27. Internet Information Services
  28. Kernel Transaction Manager
  29. List of Microsoft software codenames
  30. List of Microsoft Windows components
  31. List of WPF applications
  32. Luna
  33. Mahjong Titans
  34. Meiryo
  35. Microsoft Assistance Markup Language
  36. Microsoft Expression Blend
  37. Microsoft Expression Design
  38. Microsoft Gadgets
  39. Microsoft Software Assurance
  40. Microsoft Virtual PC
  41. Microsoft Visual Studio
  42. Microsoft Windows
  43. Microsoft Windows Services for UNIX
  44. MS-DOS
  45. MSN
  46. MUI
  47. Object manager
  48. Operating system
  49. Original Equipment Manufacturer
  50. Outlook Express
  51. Peer Name Resolution Protocol
  52. Protected Video Path
  53. Purble Place
  54. ReadyBoost
  55. Recovery Console
  56. Remote Desktop Protocol
  57. Security and safety features of Windows Vista
  58. Segoe UI
  59. User Account Control
  60. WIM image format
  61. Windows Aero
  62. Windows Anytime Upgrade
  63. Windows Calendar
  64. Windows CE
  65. Windows Communication Foundation
  66. Windows Disk Defragmenter
  67. Windows DreamScene
  68. Windows DVD Maker
  69. Windows Explorer
  70. Windows Fax and Scan
  71. Windows Forms
  72. Windows Fundamentals for Legacy PCs
  73. Windows Hardware Engineering Conference
  74. Windows Live
  75. Windows Live Gallery
  76. Windows Live Mail Desktop
  77. Windows Mail
  78. Windows Media Center
  79. Windows Media Player
  80. Windows Meeting Space
  81. Windows Mobile
  82. Windows Movie Maker
  83. Windows Photo Gallery
  84. Windows Presentation Foundation
  85. Windows Registry
  86. Windows Rights Management Services
  87. Windows Security Center
  88. Windows Server Longhorn
  89. Windows Server System
  90. Windows SharePoint Services
  91. Windows Shell
  92. Windows Sidebar
  93. Windows SideShow
  94. Windows System Assessment Tool
  95. Windows System Recovery
  96. Windows Update
  97. Windows Vienna
  98. Windows Vista
  99. Windows Vista editions and pricing
  100. Windows Vista Startup Process
  101. Windows Workflow Foundation
  102. Windows XP
  103. Windows XP Media Center Edition
  104. XML Paper Specification
  105. Yahoo Widget Engine

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From Wikipedia, the free encyclopedia


ReadyBoost is a disk caching technology first included with Microsoft's Windows Vista operating system. It aims to make computers running Windows Vista more responsive by using flash memory on a USB 2.0 drive, SD card, CompactFlash, or other form of flash memory, in order to boost system performance.

ReadyBoost is also used to facilitate ReadyBoot, an updated version of Windows XP's prefetcher which performs analysis of boot-time disk usage patterns and creates a cache which is used in subsequent system boots.[1]


Using ReadyBoost-capable flash memory devices for caching allows Windows Vista to service random disk reads with performance that is typically 80-100 times faster than random reads from traditional hard drives. This caching is applied to all disk content, not just the page file or system DLLs. Flash devices are typically slower than the hard drive for sequential I/O, so to maximize performance, ReadyBoost includes logic to recognize large, sequential read requests and then allows these requests to be serviced by the hard drive.[2]

When a compatible device is plugged in, the Windows AutoPlay dialog offers an additional option to use it to speed up the system; an additional "ReadyBoost" tab is added to the drive's properties dialog where the amount of space to be used can be configured.[3] Up to 4 gigabytes of flash memory can be assigned. ReadyBoost encrypts and compresses all data that is placed on the flash device; Microsoft has stated that a 2:1 compression ratio is typical, so that a 4GB cache could contain upwards of 8GB of data.[1]

According to Jim Allchin, for future releases of Windows, ReadyBoost will be able to use spare RAM on other networked Vista PCs.[4]

For a device to be compatible and useful it must conform to the following requirements:

  • The capacity of the removable media must be at least 256 MB
  • Devices larger than 4GB will have only 4GB used for ReadyBoost
  • The device should have an access time of 1ms or less
  • The device must be capable of 2.5 MB/s read speeds for 4 kB random reads spread uniformly across the entire device and 1.75 MB/s write speeds for 512 kB random writes spread uniformly across the device
  • The device must have at least 235 MB of free space
  • NTFS and FAT32 are supported
  • The initial release of ReadyBoost supports one device

See also

  • Features new to Windows Vista


  1. ^ a b Mark Russinovich (March 2007). Inside the Windows Vista Kernel: Part 2. TechNet Magazine. Microsoft. Retrieved on 2007-03-01.
  2. ^ Matt Ayers (June 2, 2006). ReadyBoost Q&A. Tom Archer's blog. MSDN Blogs. Retrieved on 2007-01-31.
  3. ^ Tom Archer (April 14, 2006). ReadyBoost - Using Your USB Key to Speed Up Windows Vista. Tom Archer's Blog. Microsoft. Retrieved on 2006-05-21.
  4. ^ Jim Allchin (23 May 2006). Retrieved on 2006-11-01.

External links

Microsoft links

  • Windows Vista: Features Explained: Windows ReadyBoost
  • Windows Vista Help Page on ReadyBoost
  • Windows Vista: Features Explained: Performance Features (of which ReadyBoost is one)
  • Channel9 interview with Michael Fortin on ReadyBoost and other performance technologies in Windows Vista

Other links

  • SkiZoSnaKe's Blog: How enable Ready Boost on all USB Flash Memory
  • ActiveWin ReadyBoost USB Stick test round up
  • AnandTech: Windows Vista Performance Guide - ReadyBoost, ReadyBoost Performance Analysis, and Hard Drive Performance and ReadyBoost
  • ExtremeTech: USB Flash Memory for Windows Vista ReadyBoost (September 20, 2006)
  • In depth Tom's Hardware article with analyses of ReadyBoost and Superfetch
  • Lists of compatible ReadyBoost hardware
  • Using ReadyBoost on hardware not up to Vista spec
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