how to fix mac lion error -600?
First , take your system serial number out of your profile, you don't need to broadcast that.
That error code means that there is no eligible process with a specified process serial number. Do you have a trial copy of some program that has expired?
The only online reference I can find to that error code refers to OS 9 and below. Is this what you're refering to? The questioner explicitly mentions Mac Lion, not < X.
Use the "Search communities" box above for 'error 600' (without the quotes). It doesn't come up often, however, the consensus is that it is a process issue.
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