Currently I cannot save file to C:\ and other drive because I'm not admin user for my PC.

I remember in win 2000 have the folder permission setting to let admin set the permission for other user in same PC.
But I cannot find this feature in Windows XP SP2. is that anyway to enable it or do the same thing like the folder permission in Win2000?

If you can, log in as Administrator, if this is your personal computer and you haven't set an admin password yet, just log out of your current user, type Administrator in the name box, DO NOT enter a password and log in. Go to the C: drive on the pc, right click, go to the Security tab, you should see whatever user name you have been logging in with, and change the permissions as necessary. Let me know if this helps you.

Hi Nick54,
The way you told me is what I actually asking for, but I cannot found the Security Tabs from Properties, so that I post a help message here.

Just now I check from Windows Help & Support, search the phrase "Folder Permission", and I found the way to enable the folder permission! hahaha..

From [Help & Support]
To display the Security tab
1. Open Folder Options in Control Panel.
2. Click Start, and then click Control Panel.
3. Double-click Folder Options.
4. On the View tab, under Advanced settings, uncheck the box "Use simple file sharing [Recommended]".

Now it solve my problem. wahaha.
Thanks also Nick54!