Product Key Issues

Risks of Buying Cheap Office 2021 Professional Plus Product Keys

Algirdas JasaitisAlgirdas Jasaitis Oct 29, 2026 868 views

Question details

The user wants to know why unusually cheap Microsoft Office 2021 Professional Plus product keys are available online and whether they are legitimate or safe to purchase.

Risks of Buying Cheap Office 2021 Professional Plus Product Keys
Product
Microsoft Office 2021 Professional Plus
Device & OS
not provided
Scenario
Considering purchasing a highly discounted Office 2021 Professional Plus license from a third-party seller online.
Observed behavior
Users observe that cheap keys are widely sold and may initially activate successfully, but they carry a high risk of being blocked, revoked, or unsupported by Microsoft.
Before you start

Before purchasing heavily discounted software, be aware that Microsoft rarely authorizes massive price drops, and unauthorized keys can be permanently disabled without a refund.

Solution 1Recommended

Understand the Risks and Purchase from Authorized Retailers

Learn the origins of cheap keys and why buying from official channels is the safest way to secure your software.

Extremely cheap Office 2021 Professional Plus keys typically originate from unauthorized resale channels, leaked volume licenses meant for enterprises, or fraudulent purchases.

While some keys may activate initially and even appear as a 'retail' license in your Microsoft account, they are highly monitored. Microsoft regularly audits and deactivates keys sold in violation of their terms of service.

1
Verify the seller

Check if the retailer is an officially recognized Microsoft partner by reviewing their website credentials, or buy directly from the official Microsoft Store.

2
Check the license type

Be cautious of 'Professional Plus' editions. Microsoft primarily reserves these editions for enterprise volume licensing, not for standard retail consumers.

3
Avoid 'too good to be true' deals

If a license usually costing hundreds of dollars is listed for just a few bucks on a third-party marketplace, close the page and avoid the purchase.

Understand the Risks and Purchase from Authorized Retailers
No Support or Refunds: If an illegitimately sold key is blocked or revoked, Microsoft will not provide technical support or issue a refund for your purchase.
Free Microsoft Office alternative

Use WPS Office to Avoid Licensing Risks

Instead of risking your money on potentially fraudulent or temporary Microsoft Office product keys, you can download WPS Office. It is a legitimate, free, and highly compatible alternative that offers powerful tools for word processing, spreadsheets, and presentations without the high price tag.

  1. 1. Download the software: Visit the official WPS website and click the free download button for your operating system.
  2. 2. Install WPS Office: Run the downloaded installer and follow the on-screen prompts to set up the software.
  3. 3. Open existing Office files: Launch WPS Office, click 'Open', and select your existing Word, Excel, or PowerPoint documents to continue working without any formatting loss.
100% free and legitimate software with no activation risks or surprise revocationsFully compatible with Microsoft Office formats like DOCX, XLSX, and PPTXLightweight application that requires minimal system resourcesFamiliar user interface for a seamless transition from Microsoft Office
microsoft office alternative - wps office

Frequently Asked Questions

Why are some Microsoft Office keys so cheap?

Cheap keys are often improperly distributed volume licenses intended for schools or businesses, gray-market keys from regions with lower pricing, or purchased using unauthorized methods. They violate Microsoft's terms of service.

Can Microsoft block a product key after it has been activated?

Yes. Microsoft frequently audits software licenses. If they identify a key that was sold outside authorized channels or leaked from a volume license agreement, they will revoke it, deactivating your Office applications.

Is Office 2021 Professional Plus meant for regular consumers?

No. Microsoft traditionally sells the 'Professional Plus' editions strictly through volume licensing agreements for large organizations and enterprises, not as standard retail packages for individuals.

Will I lose my files if my Office key is revoked?

No, your actual document files remain safe on your computer. However, Office will enter reduced functionality mode, meaning you won't be able to edit or create new documents until you activate a valid license or switch to an alternative suite like WPS Office.