Hi meezers,
This may be a really easy one.
Yes, and No. Setting up multiple User Accounts takes a significant amount of time and attention in the beginning, but once set up, each user is free to personalize their accounts, preferences, appearance, and stored data.
Here's a beginer's Tutorial, that covers the basics.
http://www.pcw.co.uk/computeractive/featur…p-user-accounts
The above tutorial presumes that each user is literally "a good guy" and that you as Administrator/Owner do not suspect or anticipate that any of the created user accounts will be used maliciously to exploit applications that you as Administrator wish to restrict, or maliciously exploit data that belongs to one user by another.
Data "owned" by any one user account is "generally" safe from all other users except the Administrator.
However, "there are ways" to work around default level separation of accounts and user data.
And "however again", it is possible to do some "relatively high level" permission "allowing" and "disallowing" that will give the Administrator a solid control over the machine's use.
On the otherhand, if yours is a friendly family that is not going to be doing things behind each other's back, you may be just fine with the default levels of profile, application, and data separation.
Windows XP is set up to do exactly what you are enquiring about. Follow the tutorial in the link, and you'll probably get the hang of it.
If you require more rigid control, please ask specific questions.
If you need even more thorough control features, you may need Win XP Pro, but I believe that some of the "Registry Fix" control that can be put in place will serve to increase the level of control to a security that few general users would be able to get around.
By mentioning "malicious activity" I do not infer that you or your family had such a thing in mind. I apologize if my language suggests anything different.
Your family should be able to "enjoy" the computer that you use in common! That's what you got it for.
I more often encounter need for additional permissions, restrictions, and safeguards when a computer or group of computers is generally accessed by the public…… for instance in School Computer Labs.
There is no end to the Mischief that a student/prankster can accomplish if the Administrator is not "heads-up" from the very beginning.
Final word: Each User Account should be a "Limited User Account" and only one account should be given full permissions of Administrator and that Administrator Account should be Password Protected. The person who is Administrator should also have a "Limited User Account" where they do most of their computer related work, except when updating, installing, modifying or making changes in the Operating System or Internet Access. This "Final Word" should be the case, even in a friendly family, so that less savvy Users cannot accidentally make changes that could compromise other users.
Best Regards