Cryptographic Services (CryptSvc) Defaults in Windows XP

Provides three management services: Catalog Database Service, which confirms the signatures of Windows files; Protected Root Service, which adds and removes Trusted Root Certification Authority certificates from your computer; and Key Service, which helps enroll your computer for certificates. If this service is stopped, these management services will not function properly. If this service is disabled, any services that explicitly depend on it will fail to start.

Default Settings

Startup type: Automatic
Display name:Cryptographic Services
Service name:CryptSvc
Service type:share
Error control:normal
Path:%SystemRoot%\system32\svchost.exe -k netsvcs
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\CryptSvc

Default Behavior

Cryptographic Services is a Win32 service. In Windows XP it is starting automatically along with the operating system. Then the Cryptographic Services is running as LocalSystem in a shared process of svchost.exe. Other services and drivers are allowed to run in the same process. If the Cryptographic Services fails to start, the technical information about the error is added to the Event Log. Windows XP startup should proceed, but a message box should be displayed informing the user that the CryptSvc service has failed to start.


Cryptographic Services depends on the Remote Procedure Call (RPC) service.

Restore Default Startup Configuration of Cryptographic Services

Before you begin doing this, make sure that all the services on which Cryptographic Services depends are configured by default and function properly. See the list of dependencies above.

1. Run the Command Prompt.

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

sc config CryptSvc start= auto
sc start CryptSvc

3. Close the command window and restart the computer.

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