1. Acronis Image backup?SOMEONE told me the tool restore my backup in 5 minutes fast and nice, if anyone use it please share with me i have windows XP or what do you say about ......
2. The tool Located on Start/Program/Files/Accesories/System Tools/BACKUP ??

My final question is, imagine:I save the backup on my external partition and after a while i decide to reinstall WINDOWS XP fresh copy again ,so i can use same '' backup.file'' saved on my external partition again and again ?

With Windows XP the backup utility is very old, dusty  and moldy
With newer versions of Windows it is somewhat better.

A number of firms offer free versions that are suitable for most home users.

The link below gets into the CH archives and finds articles on the topic:
best backup software

Lost of good posts.  I also backup my files every week, using easeus todo backup. support full backup, incremental backup and differential backup. You can't beat Acronis True Image. Quote from: Allan on June 05, 2015, 04:30:06 AM

You can't beat Acronis True Image.

Acronis True Image 2013 Cons:
Acronis can work on a large number of file types including music, photos and movies, but it is limited by documents, databases and servers. This is a premium back-up software package that needs to be purchased. There is a free trial version but it has limited features and functionality.

Pros of Easeus Todo Backup:
Easeus Todo Backup is one of the most popular backup utilities because of its user-friendly layout with simple menus for one-click backup REQUESTS. It completely supports the Windows platform, including Windows 2000, 2003, Vista, XP and Windows 7 and 8. Easeus Todo includes rich functionality like automatic backups triggered by specific events. Its biggest advantage is that it is totally freeware.