My computer was going slow and I have tried to do System Restore. But it is not working now. I have done System Restore in Windows 8 earlier.
Now I have tried to Refresh also. This is also not working. No messages. Computer is simply hanging. I am not getting the Task Manager details also. I doubt some malware infection. I have a Sony Vaio laptop, please advise in the present situation
how I can do the System restore.
In case I have to go for reinstallation, do I need Windows 7 installation CD as well ? Please clarify.
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