I already updated all my software and checked no updates available now. Still I am facing same problem. Please suggest..
Are you having kernel panics? Can you please post one?
Kernel Panics will rarely be fixed by a OS update as the OS is rarely, if ever, the cause of them.
Hardware and third-party kernel extensions are the main cause of KPs. When you post the KPs as Clinton has suggested, we may be able to determine the cause.
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