GeoffOakshott wrote:
As well as mis-guesstimating that my computer is "running very slow" Norton is emphasising its desire to get me to spend a further GBP40 for "expert help" on the additional grounds that Windows Firewall is Disabled, apparently failing to notice that my Norton 360 Exclusive Gold Edition (which has already netted them GBP40) has its firewall enabled.

Educated opinion on this forum indicates that running two firewalls simultaneously would be a serious mistake. So why is Norton itself implying that we should do it?
What are they playing at? Do they really want us all to scurry off to Bitdefender, Avast or AVG?
Hi GeoffOakshott
Norton PC Checkup's assertion that you need to spend an additional GBP40 to fix your 'running very slow' issue isn't Firewall related; the lack of free disk space on your machine is the culprit, as noted in your screenshot here.
The 'Windows Firewall being disabled' issue is present but not considered a hindrance in the 'No Problems Found!' PC Checkup scan results shown below:


The bottom line here is that you shouldn't be directed to a spend an additional GBP40 on 'expert help' to resolve an issue that can be easily resolved by Windows itself.
To 'Generate a system health report' in 60 seconds under Windows Vista and above, click the Windows Start orb and type:
perfmon /report
...in the Search box and press Enter.
(The long way: Control Panel\All Control Panel Items\Performance Information and Tools\Advanced Tools\Generate a system health report)
When the User Account Control dialog appears, type in your Administrator password to allow the program to run.
A low disk space outcome in the Windows System Health report typically looks like this:

The instructions provided above in the Windows System Health report are more than enough to enable a user to resolve their lack of disk space issues without having to spend an additional GBP40 on 'expert help'.
Given the above, Symantec should undertake an urgent review of the Norton PC Checkup software's behaviour to ensure that it is accurately assessing a PC's Health Status. Failing to do so will inevitably result in the Norton PC Checkup software being categorised by users as Scareware...