how we can restrict to any other to open my folder in windows XP (if only one user is present)?

Answer 1

You cant, use some software like FolderGuard

Answer 2

Hide Folders® XP

Hide Folders® XP is a simple but ingenious program for Microsoft Windows XP and 2000 users. Every day we trust our personal files to a computer. Who knows how many people will want to get access to them? If you share your computer with coworkers, children, spouse or your computer is always connected to the Internet, your private files are under threat of being revealed. Since 2001, our Hide Folders software products help our users to hide private files and folders from prying eyes.

it's free to download ! downloading link here

http://www.fspro.net/hide-folders-xp/

Answer 3

Download Folder Lock.
Folder Lock is a fast file-security program that can password-protect, lock, hide and encrypt any number of files, folders, drives, pictures and documents in seconds. Protected files are hidden, undeletable, inaccessible and highly secure. It hides files from kids, friends and co-workers, safeguards them from viruses, trojans, worms and spyware, and even protects them from networked PCs, cable users and hackers. Files can also be protected on USB Flash Drives, Memory Sticks, CD-RW, floppies and notebooks. Protection works even if files are taken from one PC to another on a removable disk, without the need to install any software. It locks files in Windows, DOS and even Safe Modes. Additional Options include Stealth Mode, Hacker Attempt Monitoring, Shred files, AutoLock, Auto Shutdown PC, Lock your PC, Erase PC tracks, 256-bit Blowfish Encryption and Context Menu in Explorer. It is Windows Vista/2003/XP/2000/NT/Me/98/98S compatible and works on all kinds of disk types like FAT16, FAT32, NTFS. Folder Lock is the most downloaded file-security program in the market today.

Answer 4

Yep. 3rd party software only. Windows XP has no built-in method of doing this.