Hi Ben! Congratulations on your new PC purchase! Here's a breakdown of the steps you plan to take and some information regarding your Windows upgrade plan: 1. Transferring the Hard Drive from Mac Mini: Removing the hard drive from your Mac Mini and using it in your new PC is feasible as long as the hard drive is compatible with the new PC's hardware. 2. Wiping the Hard Drive: Before installing it in the new computer, you should wipe the hard drive completely to ensure there are no compatibility issues or remnants of the previous macOS or Boot Camp installation. 3. Windows Vista Reinstallation and Windows 8 Upgrade Offer: - Regarding the Windows 8 upgrade offer for £25, if you purchase the license before the offer ends, you should receive a license key that you can use to activate Windows 8. - Typically, the upgrade offers come with a specific activation window, and the license key should work within that timeframe. However, it's always a good idea to check the terms of the offer for any specific details. 4. Activation with the License Key After Installing Windows 8: - Once you transfer the hard drive to your new PC, you can download the trial version of Windows 8 from Microsoft's website. - You should be able to activate it with the key you purchased, even if it's after the offer period, as long as the key is valid and within its activation window. The key should work regardless of when you activate it, as long as it's within the license validity period. To summarize, you should be able to purchase the Windows 8 license during the offer period, receive the key, and activate Windows 8 on your new PC even after the offer ends, as long as it's within the license activation window. Make sure to check the terms of the offer for any specific details or limitations. If you have any more questions or need further assistance, feel free to ask!