Both Firefox and I.E take several minutes to change web pages.
Did several broadband speed tests, all come back as 70mbps or above.
Have you tried disabling F-Secure to see if that makes any difference?
Also, do you have any other security software running, such as Windows Defender, as this could be a symptom of a conflict.
In addition I ran on-line scan and clean, nothing found.
Thanks very much for your reply.
Switched off Windows Defender and evrything is now OK.