Solved! 2 OS on one laptop.

[ukp]

On acer aspire 5733z I've instald winxp sp2 and win7. but navigate to one OS to other I've to change BIOS. how to select OS to boot without changing BIOS ?

 

[davaross]

I'm assuming this model comes equipped with dual hard disk drives as you are likely changing the boot priorities in the bios. You will need to install a bootloader onto the primary hard disk enabling you to choose between the os's without modifying thre bios. Do a google search for GRUB and read the associated wikis.

 

[teleman56]

Another option you might consider, rather than using a multiboot configuration, is to use Windows 7 as your OS and install Virtualbox (free from Oracle). Then you can create a virtual machine that runs XP, or a multitude of other OS's

That would eliminate all of the bios configuration changes and give you access to needed OS's in a far smoother operation.

https/www.virtualbox.org/