ReadyBoost (rdyboost) Service Defaults in Windows 7

ReadyBoost.

Default Settings

Startup type:Boot
Display name:ReadyBoost
Service name:rdyboost
Service type:kernel
Error control:critical
Group:PnP Filter
Path:%SystemRoot%\System32\drivers\rdyboost.sys
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\rdyboost

Default Behavior

ReadyBoost is a kernel device driver. In Windows 7 it is being loaded by Boot Loader before Kernel initialization. If ReadyBoost fails to load, Windows 7 attempts to write the error data into Event Log and restart the computer, using the Last Known Good configuration. If the Last Known Good configuration is not valid, Windows 7 startup ends with a Stop error. If you remove or disable the rdyboost service, Windows 7 won't start.

Restore Default Startup Configuration for ReadyBoost

1. Select your Windows 7 edition and service pack, and then click Download.

2. Save the Win7_rdyboost_Service_Startup.cmd file to a local storage device.

3. Run the saved file as an administrator.

4. Restart the computer.

The rdyboost service is using the rdyboost.sys file that is located in the %WinDir%\System32\drivers folder. If the file is changed, damaged or deleted, you can restore its original version from Windows 7 installation media.