Microsoft no longer sells Windows 8.1 Pro directly, but they still provide official ISO download tools for customers who have valid product keys. The safest way to obtain Windows 8.1 Pro is via the . However, Microsoft has made this page less visible; here is the correct method as of 2025:
Make sure you have a genuine Windows 8.1 Pro key, not a Windows 8 Pro key (though the latter should work if you are upgrading from within Windows 8). Also ensure you are downloading the correct edition (Retail vs. Volume License). Microsoft’s download tool accepts only retail keys. windows 8.1 pro download
If you use Windows 8.1 Pro on a laptop, encrypt your drive: Control Panel → BitLocker Drive Encryption → Turn on BitLocker. You will need a USB key or password. Without a TPM, you can enable BitLocker via Group Policy (requires additional configuration). Microsoft no longer sells Windows 8
: Because Microsoft no longer supports Windows 8.1, your system will be more vulnerable to viruses and malware. It is highly recommended to upgrade to Windows 10 or Windows 11 if your hardware supports it. Also ensure you are downloading the correct edition
To get a legitimate copy, you should use the official .
If you still choose to use Windows 8.1 Pro:
Originally, Microsoft provided a dedicated “Media Creation Tool” for Windows 8.1, similar to the Windows 10 tool. That tool is no longer officially hosted, but you may find archived versions on trusted repositories. —third-party archives may contain malware. Always verify SHA-1 hashes against known official values.
