How to download, install and activate Office 2019 Professional Plus
Your Office 2019 Professional Plus download is the installer link in the OfficeGSM order email that carries your key, and it sets up the volume build on Windows 10 or 11. When it finishes, open Word and use File, Account, Change Product Key. Allow 15 to 30 minutes, and skip setup.office.com.
| Official download | Link in your order email, or the Office Deployment Tool |
|---|---|
| Installer type | 64-bit Click-to-Run, perpetual volume channel |
| Time needed | 15 to 30 minutes |
| Activation | 25-character key in Word, under File > Account |
| Works on | Windows 10 and Windows 11, one PC per key |
| Free help | Email every day, phone Mon–Fri 9am–6pm ET |
Before you start
One thing to be clear about first: Microsoft stopped issuing security updates for Office 2019 on October 14, 2025. The apps still install and still work, and plenty of people run them happily on an offline or second machine, but nothing new is patched. If the PC handles email and web files all day, read our Office 2024 Professional Plus guide before buying.
- Keep the order email open, because the download link and the key are both in it.
- Uninstall every other Office first, in Settings, Apps, Installed apps, including Microsoft 365 and preinstalled trials. Then restart.
- Clear the leftovers with Microsoft’s Office uninstall support tool if an entry keeps coming back.
- Do not sign in with a Microsoft account, which can replace your license with a Microsoft 365 trial.
- Accept the end-of-support position, or pick a supported release instead.
| Requirement | Minimum |
|---|---|
| Operating system | Windows 10 or Windows 11 |
| Not supported | Windows 8.1 and older, macOS, Chromebook, Linux |
| Apps included | Word, Excel, PowerPoint, Outlook, OneNote, Access, Publisher |
| Licensing | One PC per key, perpetual, no subscription |
| Security updates | Ended October 14, 2025 (Microsoft lifecycle page) |
Download Office 2019 Professional Plus
Start from the download link in your order email. It points at Microsoft’s Click-to-Run installer for the perpetual volume build, the build your key matches. Nothing is redeemed on a web page first: setup.office.com serves retail cards and answers “Service unavailable” for a volume key.
- Open your OfficeGSM order email. It carries the key beside the installer link.
- Click the download link. The 64-bit build is standard. Ask us if an old add-in needs 32-bit.
- Save the file and keep the email open, because the key is needed shortly.
IT teams can pull the same files from Microsoft with the Office Deployment Tool. Save the file below as configuration.xml beside setup.exe, then run both commands from an administrator Command Prompt.
<Configuration>
<Add OfficeClientEdition="64" Channel="PerpetualVL2019">
<Product ID="ProPlus2019Volume">
<Language ID="en-us" />
</Product>
</Add>
<Display Level="Full" AcceptEULA="TRUE" />
</Configuration>setup.exe /download configuration.xml
setup.exe /configure configuration.xmlInstall Office 2019 on Windows 10 or Windows 11
The install is hands-off, and one thing surprises people daily: it never asks for a product key. That is normal here, because the key goes in later, inside Word.
- Run the downloaded file and approve the prompt from Windows.
- Get past SmartScreen. On “Windows protected your PC”, click More info, then Run anyway. If nothing happens, turn Smart App Control off in Windows Security.
- Leave the progress window alone. Closing it partway means starting again.
- Wait for the message saying you are all set. Word, Excel, PowerPoint, Outlook, OneNote, Access and Publisher are then in the Start menu.
- Open the desktop app, not the Store app. Press the Windows key, type Word, and pick the app you just installed.
If a sign-in box appears, close it. A Microsoft account is not needed here, and signing in is the quickest way to end up with a Microsoft 365 trial instead.
Activate Office 2019 with your product key
Activation is done once, in any app, and it covers the whole suite. We use Word because it is the app people open first. Have your 25-character key to hand.
- Open Word and close the start screen.
- Click File, then Account, near the bottom of the left-hand column.
- Click Change Product Key, which sometimes reads Activate Product on a fresh install.
- Paste the 25-character key rather than typing it, which avoids mix-ups between 0 and O.
- Let activation finish, then close every Office app and reopen Word.
- Read the Product Information panel. It should show Office Professional Plus 2019 and the status Product Activated.
If you see 0xC004C020, or a message about a Multiple Activation Key reaching its limit, the key is still good and Microsoft wants the job finished by phone. Click Back, choose to activate by telephone, and follow our phone activation and Confirmation ID guide.
Check that it worked
Open Word, click File and then Account, and compare the panel with the lines below.
- The product name reads Office Professional Plus 2019. Anything else means an older Office is in charge.
- The status says Product Activated, with no countdown or coloured banner.
- The banner stays away after a restart. Reboot and open Excel to be sure.
- Access and Publisher both open. All seven apps share this one activation.
Common errors and how to fix them
The messages our team sees most often, cause first and fix after. If yours is not here, send us a screenshot.
0xC004C020 or “activated up to the limit of your Multiple Activation Key”
Online activation on the key is used up, which is not the same as an invalid key, and Microsoft wants the last step finished by phone. In Word open File, Account, Change Product Key, enter the key, and when the error appears click Back and choose to activate by telephone. Pick your country to get an Installation ID, then read it to the automated line or send us a screenshot and we will get the Confirmation ID for you.
0xC004C003 or “the specified product key is blocked”
A blocked key is one Microsoft has pulled on their own servers, so nothing on your PC will fix it. Email your order number and a screenshot to contact@officegsm.com. We check the key with our supplier and send a replacement free of charge, usually the same day, and it goes in the same way under File, Account, Change Product Key. Office does not need reinstalling for a new key.
Error 30015-25 or 30038-25 during setup
The installer has stopped because another Office is already on the computer, and the two cannot share a machine. In Settings, Apps, Installed apps, uninstall every Office and Microsoft 365 entry, including any preinstalled trial, then restart and run the installer again. If the error returns, files are still on the disk, and Microsoft’s Office uninstall support tool clears them out. Restart once more afterwards.
Word says “Unlicensed Product” or “Product Activation Required” weeks later
Office has dropped into reduced functionality mode because activation never actually completed, usually because the PC was offline at the time or the last step was missed. Open Word, go to File, Account and read the Product Information panel. If it does not say Product Activated, click Change Product Key and enter your key again with the computer online. If 0xC004C020 comes back, finish by telephone as described above.
Office 2019 Professional Plus download questions
Answered by the team that handles our tickets every day.
Where is the official Office 2019 Professional Plus download?
The download link is in the OfficeGSM order email that reaches you within minutes of the purchase, next to your 25-character key, and both are saved in your account on our site. The file is Microsoft’s Click-to-Run installer for the perpetual volume build, and we send the 64-bit version by default. If an old add-in needs 32-bit, email contact@officegsm.com and we will send that link instead. IT teams can pull the same files from Microsoft with the Office Deployment Tool.
Is Office 2019 still safe to use now that support has ended?
Microsoft stopped shipping security updates for Office 2019 on October 14, 2025, so any flaw found after that date stays open. The apps themselves keep working, and your license does not expire. It suits a machine that stays offline, a second PC used for writing and spreadsheets, or anyone who simply needs to open existing files. For a computer that handles email and downloads all day, Office 2024 is the current perpetual release and runs to October 2029. Our Office 2024 guide covers it.
Can I redeem my Office 2019 key at setup.office.com?
No. That page exists for retail Microsoft 365 subscriptions and retail Office cards sold in shops. This product is the volume-licensed perpetual edition, so setup.office.com returns “Service unavailable” or says the key is invalid, and neither message tells you anything about your key. Install Office first from the link in your order email, then enter the key in Word under File, Account, Change Product Key. That is the only place a key like this is accepted, and it works the same way from Excel or PowerPoint.
How many PCs does one Office 2019 Professional Plus key cover?
One key activates one computer. If you rebuild that same machine or reinstall Windows, the key can normally be used on it again, and when online activation refuses, telephone activation clears it in a few minutes. Please do not share the key, because every extra device uses up the activation count and eventually produces the 0xC004C020 message. For several computers, the 5 PC pack works out cheaper than five separate keys, and the steps on each machine are identical to the ones above.
Need a genuine Office 2019 Professional Plus key?
$10.50 once, by email in minutes, with a 180-day money-back guarantee. The rest of the Microsoft Office 2019 range is here.