Neil has a Sony Vaio laptop running Windows XP and knows he should upgrade to Windows 10. Can he and still run 32 bit? Leo says that 32 bit won't be a problem with Windows 10, but the machine may be too old and not have enough RAM to run it. It's worth a try though, and you can roll it back if it doesn't work well. What you could try is to download the Windows 10 Media Creation Tool, burn it to a DVD and then boot to that DVD to see if it'll run. If it does, however, it'll likely be really slow. Leo advises using Linux on it. Xubuntu is a good version to install. Another is PuppyLinux.
From the Chatroom, you'll need to upgrade to Windows 7 first, and XP won't upgrade to Windows 10 for free. So you'd need to buy Windows 10. NOT WORTH IT.