Thank you ThatoldITguy for the registry change info that you posted above. I did it and it does allow me to manually run Symantec Norton Anti-Virus Corp 2004 edition on my computer and perform a scan. I see that it is basically a copy of what Symantec posted at
http://service1.symantec.com/support/ent-security.nsf/854fa02b4f5013678825731a007d06af/ef06f50fcab0ce1188256a2200272927?OpenDocument&Click=
If I could simply make a suggestion that if a person simply goes to
Start / Run / regedit / OK
Then does EDIT / Find / ScanBootSector
and for every instance found by hitting the F3 button (about 12 of them were on my computer) you simply change the value in the registry from 1 (one) to 0 (zero) that both "manually scan your computer" and "scheduled scans of your computer" will work. Changing the value from 1 (enabled) to 0 simply disables the Norton Symantec Anti-virus program from being able to scan the C drive's boot sector. Hence it stops it from erroring out.
Please note that Fraigan posted above that the ScanLocked registry value may also have to be set to 0 (zero) but I did not have to do this because it was already set to zero.
Lastly for all those getting upset over those of us using older versions of Symantec Anti-Virus (SAV) or Norton Anti-Virus (NAV), please realize that us IT guys use the corporate edition of NAV or SAV which can be used on multiple computers and can receive virus updates for years without changing or updating the original program. Also realize that many times this corporate edition was placed on a Win98 PC which does not allow the updating to the newest version of Symantec Anti-virus. The reason that someone is still using a PC with the Windows 98 operating system is truly irrelavant but to appease those reading this, there are many such as: The Win98 machine may be using ISA slots for IC programmers, Voice mail cards, etc. The Win98 machine may be interfaced to a piece of machinery where the cost to upgrade is either too costly or simply not available. The Win98 machine may be used with an old program application where the OEM (original equipment manufacturer) is out of business. OR it may simply be a case of "If it isn't broken, don't fix it!" In any case, there are many reasons why someone may be using an old version of NAV and not want to upgrade. The PC it is used on may never or rarely be used on the internet, possibly just to run a manufacturer's program application update, hence it needs only basic protection. Lastly, many individuals simply hate to consistently pay out money for reaccurring expenses. i.e. cableTV, satelliteTV, phone company,etc. And it is more irritating when those expenses are for something that expires for no reason or simply too often. i.e. drivers license, car inspection, car registration, auction sniping software, coupons, gift cards, etc. Most people feel that when they purchase something like a fridge, washer, dryer, alarm system, TV, VCR, DVR, etc. that it's a one time shot until the device breaks. Most individuals reading this would be highly upset if their alarm system or refridgerator stopped working at the end of a year or any specific time period (known as EOL End of Life) and they were FORCED to pay a fee to make the alarm system or fridge work again. Not to mention how upset they would be to find out their house was robbed or food was ruined in the fridge or, in this case, that their computer was recently vunerable and possibly infected with viruses.