Microsoft Windows 11 Pro + Office 2021 Pro Plus

This guide covers your whole Microsoft Windows 11 Pro + Office 2021 Pro Plus bundle: install and activate Windows 11 Pro, then install and activate Office 2021 Professional Plus — step by step.

This bundle gives you a genuine lifetime licence for both Windows 11 Pro and Office 2021 Pro Plus (Word, Excel, PowerPoint, Outlook, Access, Publisher). If you don’t have it yet, get your genuine windows 11 pro and office 2021 keys from Kymakers below.

Part 1 — Install & activate Windows 11 Pro

Download the Windows 11 ISO / Media Creation Tool

1. Go to Microsoft’s official Download Windows 11 page.
2. Under “Create Windows 11 Installation Media”, download the Media Creation Tool, or download the Windows 11 Disk Image (ISO) directly.
3. Use the tool (or Rufus with the ISO) to create a bootable USB, or mount the ISO to upgrade in place.

Install

1. Run setup.exe from the mounted ISO to upgrade, or boot from the USB for a clean install.
2. When asked for a key, choose I don’t have a product key and select Windows 11 Pro. Complete setup.

Activate Windows 11 Pro

Open Settings → System → Activation → Change product key and enter your Windows key, or use Command Prompt (Admin):

slmgr /ipk YOUR-WINDOWS-KEY
slmgr /ato

Confirm it reads “Windows is activated” under Settings → Activation.

Part 2 — Install & activate Office 2021 Pro Plus

Download & install Office 2021 Pro Plus

Use the official Microsoft installer image below — it starts downloading automatically:

1. Open File Explorer → Downloads and double-click ProPlus2021Retail.img to mount it as a virtual drive.
2. Open the mounted drive and run setup.exe (use setup64.exe for 64-bit). Office 2021 Pro Plus installs automatically — no configuration file needed.
3. When it finishes, open any Office app such as Word to continue to activation.

Activate Office 2021 Pro Plus

Open any Office app → File → Account → Change Product Key and enter your Office key, or run:

cd "C:\Program Files\Microsoft Office\Office16"
cscript ospp.vbs /inpkey:YOUR-OFFICE-KEY
cscript ospp.vbs /act

Troubleshooting

Office key won’t activate

Make sure you installed the PerpetualVL2021 / ProPlus2021Volume edition as above. Remove any Microsoft 365 install first from Settings → Apps.

Windows activation error 0xC004F074

Re-run slmgr /ato after a few minutes and check your internet and date/time.

Frequently asked questions

Do I get two separate keys?

Yes — one for Windows 11 Pro and one for Office 2021 Pro Plus, both delivered by email.

Is everything a one-time purchase?

Yes, both are lifetime licences on one PC with no subscription.

Where do I get genuine keys?

From Kymakers — instant delivery and 24/7 support.