Cryptographic Services won't start

From: BDH (
Date: 11/08/05

Date: Tue, 8 Nov 2005 12:33:50 -0700

Windows XP Home, SP2 on Compaq 2ghz, 512mb Ram.

Get the error when try to start..
Could not start the Cryptographic Services service on Local Computer.
Error 193: 0xc1

Windows updates (Windows Installer 3.1 & Update KB898461) won't install, nor
will Norton A/V 2006

Cannot seem to find answer in MS KB, Symantec etc.