Ok this is really off-topic but i couldnt resist myself putting it up here. Ill describe it short.
Unable to open Event viewer and Exchange system manager, Active Directory Snap-ins
Access is denied.
ID no: c0070005
Exchange System Manager
Dont ask me why someone would add the Administrator or Domain Admin accounts in the security group "Guests and Domain Guests"
But if they are inthere you cant open the Event Viewer, Exchange System Manager or Active Directory Snap-ins.
Removing the accounts and logging of and on solves it. There is no KB article of this and i do hope you never will experience this, because it consumes time!
Doesnt this apply to you but you have the same error code, this link might be good for you: