You need to save the file, and create a bootable DVD or USB thumb drive.
Matt Egan is Editorial Director of IDG UK, publisher of Computerworld UK, having worked for the UK's leading technology media company since 2003.
A passionate technology fan who writes on subjects as diverse as smartphones, internet security, social media and Windows, in his spare time Matt enjoys playing football (badly) and singing in a band (also badly).
Here’s a trick to turn Windows XP Home Edition to Windows XP Pro, from within the operating system without going through installation.
This doesn’t install or add all the features from Windows XP Professional, such as Remote Desktop Server (Install Remote Desktop on XP Home) and Group Policy Editor (GPedit) utility tools, which was removed from Windows XP Home edition.
Find your software installation discs and licence keys.
If you have misplaced the keys, use a free program such as Magical Jellybean Keyfinder to search the Windows registry for these codes, and then write them down.
Keep an eye on the install as it will reboot your computer and if you don't remove the DVD or flash drive it might try to boot from it instead of your hard drive. Finally, Windows 10 will boot, ask you a few questions and then ask you to sign in with your Microsoft ID.
At this point, you can set up the user structure you want on your PCs.
Now head to Microsoft's Windows 10 download page and click on the link for the version you need.