About this release
Windows 8.1 Pro is kept in circulation for the machines and the tools that never moved on from it. Some older hardware runs it more happily than anything newer, some line of business software was certified against it and nothing else, and some people simply prefer it. This is the professional edition image at its final servicing state, prepared so setup completes without stopping for a product key and reaches a desktop that is already activated.
The professional edition carries the features worth having on a working machine of the era. BitLocker for disk encryption, Remote Desktop as a host, group policy for real configuration, domain join, and the Hyper-V client for virtual machines. The image keeps the full component store, so the optional features and language packs are present rather than stripped, and the recovery environment is intact.
It installs like any Windows image. Write it to a USB stick or a disc, boot it, and run through setup including partitioning and the choice between a clean install and an upgrade. Both legacy and UEFI boot paths are covered. As an older release its mainstream support has long ended, so it belongs on machines that are isolated or dedicated to a specific job rather than a daily internet facing system.
What it does
- Complete professional edition image with nothing stripped from the component store
- BitLocker full disk encryption
- Remote Desktop host, not just the client
- Hyper-V client for virtual machines
- Group policy and domain join available
- Full recovery environment intact
- Twenty setup and display languages included
- Boots on both legacy BIOS and UEFI systems
- Clean install or in place upgrade paths
- Prepared to complete in an activated state
Changes in this version
- Rolled up final servicing baseline included in the image
- Updated driver set for storage controllers of the era
- Fixed a setup hang on some multi drive machines
- Refreshed language pack set
- Cleaner first boot with less post install work
What the package contains
- Bootable Windows 8.1 Pro installation image
- All setup and display languages
- Full recovery environment
- Notes on writing the image to USB with the common tools
- Readme with the install order written out step by step
Installation notes
Follow these in order. Most reports of a failed install come from skipping a step rather than from the package itself.
- Back up anything you care about, a clean install wipes the target partition.
- Write the image to a USB stick of 8 GB or larger, or burn it to a disc.
- Boot from the media, choosing the UEFI entry on a machine that supports it.
- Pick your language, then choose custom install for a clean setup.
- Delete the old system partitions if you are wiping, then select the free space.
- Let setup run through its restarts and reach the desktop.
System requirements
| Processor | 1 GHz or faster, 64-bit |
| Memory | 2 GB minimum |
| Graphics | DirectX 9 with WDDM driver |
| Storage | 20 GB minimum |
| Firmware | Legacy BIOS or UEFI |
| Display | 1024 by 768 minimum |
Things worth knowing
- Mainstream support for this release ended long ago, keep it on isolated or dedicated machines rather than daily internet use.
- Drivers for very new hardware may not exist for this version, check before installing on a recent machine.
- Disconnect from the network during setup to keep the out of box experience simple.
Questions about this title
Why install such an old version?
Is the home edition included?
Can I upgrade in place?
Is it safe to keep online?
What people are saying
Needed it for a machine tied to old certified software. Installed clean, activated, no key prompt.
Runs better on this particular old desktop than anything newer I tried. Glad it is still around.
Keeping it off the internet as advised. For its one job it is perfect.
Listing information
This entry is catalogued under Operating Systems and carries the tags below. Language coverage is Multilingual, 20 setup languages, and the supported platform list is Bootable installation image. Version 6.3 build 9600 is the current catalogued build, last checked 1 week ago, and the entry has been in the index since it was added 3 years ago.