Updating xp to 7
Most PCs that run XP should run Windows 7, but the Upgrade Advisor will tell you for sure. If you can run Windows 7, you need to purchase the software.
Because XP to Windows 7 (or Windows 8) is not a single-step upgrade, you'll need to do a fresh install, so you need a full copy of Windows 7.
Want to check out Linux, but fear you might wreck your existing Windows installation? There are plenty of risk-free ways to try Linux, from live CDs to USB keys to virtual machines. Windows XP Unofficial Service Pack 4 provides a quick way to apply updates released since SP1.
Roll Back XP offers an easy system restore feature and you can even deep freeze your installation via scheduled tasks., and (at your own risk) apply the registry hack that will make Windows XP receive free security updates until 2019.
As mentioned earlier, Microsoft is retiring Windows 7, but OEMs are still selling laptops with Windows 7 pre-installed.
This is the OEM or 'original equipment manufacturer' version.If you've downloaded Windows 7 rather than buying a DVD, browse to the installation file you downloaded, and then double-click it (often identified as an Application file under the Type column).If you've created a bootable Windows 7 installation USB thumb drive, insert the drive into your computer. If it doesn't, click the Start button, click Computer, double-click the drive, and then double-click On the Get important updates for installation page, get the latest updates to help ensure a successful installation, and to help protect your computer against security threats. Choose the partition containing Windows XP (this is often the computer's C: drive), and then click Next. Follow the instructions to finish installing Windows 7, which include naming your computer and setting up an initial user account.Fortunately Microsoft provides the Windows Easy Transfer for Windows XP program to help.Backing up files and data is relatively straightforward, but bear in mind that you will need the install files and codes for all software programs you want to.