Installing Windows XP and Windows 7
Yes Aldrin,
You can install both OS on your laptop. You have 2 options:
1. Dual boot
2. Virtual machine
For dual booting Windows 7 and Windows XP please read this excellent tutorial:
https://www.sevenforums.com/tutorials/8057-dual-boot-installation-windows-7-xp.html
The installation method depends on whether XP is the one installed first or if it is Windows 7. Dual-booting means you will have to select which operating system to boot up with on start-up. You either run on XP or 7 but not at the same time.
The second option I presented to you is using a virtual machine. You can run one operating system within the other one. You can get a free virtual machine here: https://www.virtualbox.org/
The advantage of the virtual machine setup is you can have both OS running at the same time. It will, however, require a fairly powerful laptop. If your laptop has 2 or more cores and has at least 2 GB of RAM, then I suggest the virtual machine option.
Installing Windows XP and Windows 7
It is nice to have two operating system in my laptop so i will be able to choose which one am going to use. Thank you for the advice Techyv team.