ReadyBoost (rdyboost) Service Defaults in Windows 8


Default Settings

Startup type: Boot
Display name:ReadyBoost
Service name:rdyboost
Service type:kernel
Error control:critical
Group:PnP Filter
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\rdyboost

Default Behavior

The ReadyBoost service is a kernel device driver. In Windows 8 it is being loaded by Boot Loader before Kernel initialization. If ReadyBoost fails to load or initialize, the error details should be automatically logged. Then Windows 8 is restarting the PC and attempting to use the Last Known Good configuration. If the Last Known Good configuration isn't working properly, Windows 8 startup ends with a Stop error. If you disable the rdyboost service, Windows 8 will fail to start.

Restore Default Startup Configuration of ReadyBoost

1. Run the Command Prompt as an administrator.

2. Copy the commands below, paste them into the command window and press ENTER:

sc config rdyboost start= boot
sc start rdyboost

3. Close the command window and restart the computer.

The rdyboost service is using the rdyboost.sys file that is located in the C:\Windows\System32\drivers directory. If the file is removed or corrupted, read this article to restore its original version from Windows 8 installation media.