Thanks again for your continuing attention to this thread. Still have not been in front of the BSOD system.
On the second system (not the bluescreen pagrefault one) I removed the drives, installed a new one and upgraded to Windows 7 Professional via clean install - all updates applied. Norton not installed.
Booted from Norton 2012 cd, (it asked for product key and I entered it) and refreshed network connection. Ran NBRT tool, It scanned system showing signatures dated 11 October, 2011. Scan completed showing no infections.
Decided to try Power Eraser Tool - Rebooted pc from NIS 2012 Disc, clicked refresh network connection, then clicked on power eraser - similar behaviour as before - dialog box disappeared. Re-clicking this eraser option again flashed a dialog box which again disappeared in the blink of an eye. By repeatedly clicking the Power Eraser tool I was able to discern that the dialog said "downloading Power Eraser tool" with an immobile progress indicator and a cancel option.
It appeared to be downloading nothing so, I clicked on the command prompt option and ran netstat 1 to show network connections at 1 second intervals. It displayed no foreign connections till I repeatedly clicked on the power eraser tool command,
whereupon it connected to 66.185.85.187 via http. The connection was dropped shortly, however, and the system continued doing nothing.
To be certain it was not a slow connection, I left the machine alone for half an hour - no results. Exit and reboot into Windows.
An ARIN whois lookup for 66.185.85.187 indicated that the address belongs to Rogers cable, my internet provider - but added: "ARIN has attempted to validate the data for this POC, but has received no response from the POC since 2010-07-08"
Querying the IP with Steve Gibson's "IDServe" produced the following:
Initiating server query ... Looking up the domain name for IP: 66.185.85.187
(The domain name for the specified IP address could not be found.)
Connecting to the server on standard HTTP port: 80
[Connected] Requesting the server's default page.
The server returned the following response headers:
HTTP/1.0 400 Bad Request
Server: AkamaiGHost
To sum up: The NBRT tool now works on a fresh install with a new hard drive, The Norton Power eraser, on the same cd (which must apparently be downloaded from the internet,) apparently does not.
Norton 2012 cd apparently connects to what appears to be a local Akamai server to obtain the power eraser tool and fails.
While I wouldn't rule out the suggestion of turning off tamper protection, there are no instructions ro do so in the tutorials for NBRT and the Power eraser found here: http://us.norton.com/products/tutorials/tutorials.jsp?pvid=nis2012&tutid=recovery_tool
Looking forward to trying again on the laptop that produced the "Pagefault in non paged area" BSOD