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Outage leaves many Hotmail users cold

Users of Windows Live services, including a significant number of Hotmail users, were having trouble getting to their accounts on Tuesday.

Service unavailable screen
Many Hotmail users got this message when trying to access their inboxes Tuesday. Martin LaMonica/CNET

Microsoft's Windows Live services experienced a significant outage Tuesday, leaving many users unable to get to their Hotmail inboxes. A company representative said all Windows Live services are affected, though not all users are reporting problems.

Microsoft said it is still trying to determine the cause of the problems.

"We are aware that some customers may be experiencing difficulty accessing their Windows Live accounts," the software maker said in a statement to CNET "We're actively investigating the cause and are working to take the appropriate steps to remedy the situation as rapidly as possible. We sincerely apologize for any inconvenience and disruption this may be causing our customers."