Your first problem is this
YOU have 1GB ram
That is the MINIMUM to run Vista BusinessWindows Vista Home Premium, Windows Vista Business, Windows Vista Enterprise, and Windows Vista Ultimate
- 1-gigahertz (GHz) 32-bit (x86) processor or 1-GHz 64-bit (x64) processor
- 1 GB of system memory
- Windows Aero-capable graphics card
Extracted from this link herehttp://support.microsoft.com/kb/919183
That means the absolute MINIMUM, it does not mean that the 1GB will run the system you have, it simply means that it will run VISTA Business.
So your first and most important consideration for a smoith running system on which you can work without it being like watching grass grow is to increase the ram to 2GB
depending on how the 1GB is made up - eg two sticks of 512MB -NO spare slots
or 1 stick of 1GB with one spare slot.
Your next consideration and this can if you are so minded be dealt with now
NORTON is one of the heaviest users of resources
There are FREE AV`s that use an awful lot less.
If you decide to deal with the Norton issue first
1. Establish a restore point - see my item 13 on this post
2. Uninstall Norton by going Control Panel, programs and features - find the Norton entry and click on uninstall
3. Go herehttps://www-secure.s...n=1&lg=en&ct=us
Run the Norton uninstaller tool
5. Check that all is working DO NOT BROWSE the internet
6. Establish another restore point
7. Go herehttp://windows.micro...rity-essentials
Download and install MSE
9. Check all is working OK.
Check the green icon for the MSE on gthe taskbar is there - bottom right of desktop
right click OPEN it and check it says system is protected.
10. Check that browser is OK and you can access sites.
11. Go Control Panel and click to open Windows Firewall is it reporting firewall is ON
OR is another fiirewall installed. IF the latter post for advice please.
12. Further advice on ram will be provided when you return
13. How to establish restore point http://www.howtogeek...system-restore/