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Microsoft Office 365 Pro Plus License: Full Guide to Activation, Troubleshooting, and Management
May
Microsoft Office 365 Pro Plus License: Full Guide to Activation, Troubleshooting, and Management
Microsoft Office 365 Pro Plus License is essential for accessing premium productivity tools like Word, Excel, PowerPoint, Outlook, and Teams. Whether you’re installing Office for the first time or facing issues with your current license, understanding how the Office 365 Pro Plus License works can save time, reduce frustration, and improve workflow. In this guide, we will cover everything you need to know about activating, managing, and troubleshooting Office 365 Pro Plus licenses on Windows or Mac.
What Is the Microsoft Office 365 Pro Plus License?
Microsoft Office 365 Pro Plus License refers to a subscription-based license provided primarily to businesses, schools, and enterprise users. It grants access to the full suite of Microsoft Office applications, including advanced features, cloud connectivity, and cross-device compatibility.
Unlike retail versions, Office 365 Pro Plus is regularly updated with the latest features, improvements, and security patches. It’s often bundled with Microsoft 365 Business Premium or Microsoft 365 Apps for enterprise, making it an attractive option for professional environments.
️ H2: How to Activate Microsoft Office 365 Pro Plus License
✅ Step 1: Sign In with the Correct Microsoft Account
The first and most critical step is signing in with the Microsoft account associated with your subscription.
- Open any Office app (like Word)
- Go to File > Account
- Click Sign In (top-right corner)
- Enter your email address and password
Make sure you’re not using a personal email if your license is through school or work.
Step 2: Check Activation Status
Still on the Account page, you’ll see one of these:
- Product Activated ✅ (you’re good to go)
- Unlicensed Product ❌
- Subscription Expired ⏳
If it’s not activated, proceed to the next steps.
Step 3: Use Office License Removal Tool (If Problems Exist)
Sometimes conflicting licenses or expired keys cause errors. Use Microsoft’s Office License Removal Tool:
- Download from https://aka.ms/diag_officeuninstall
- Run the tool and remove all Office license keys
- Restart your computer
- Open Word, sign in again with your valid Microsoft account
This resets your license state and often fixes “Could not activate” or “Unlicensed” errors.
Step 4: Manual License Activation via Command Line (Windows Only)
Open Command Prompt as Administrator:
cd "C:\Program Files\Microsoft Office\Office16"
cscript ospp.vbs /dstatus
This shows the current license. Remove an old key:
cscript ospp.vbs /unpkey:XXXXX
Add your valid key:
cscript ospp.vbs /inpkey:XXXXX-XXXXX-XXXXX-XXXXX-XXXXX
Then activate:
cscript ospp.vbs /act
This step is particularly useful for volume licenses.
️ H2: How to Fix Common Microsoft Office 365 Pro Plus License Issues
If you’re facing errors like:
- “We’re sorry, something went wrong.”
- “Unlicensed Product”
- “Could not update license info”
- “Your license isn’t valid”
Use the following troubleshooting checklist:
H3: Run a Quick or Online Repair
- Go to Control Panel > Programs > Programs and Features
- Select Microsoft Office 365 Pro Plus
- Click Change > Quick Repair
- If it doesn’t work, try Online Repair
H3: Check Firewall or Proxy Settings
If your device can’t reach Microsoft’s activation servers:
- Disable VPN temporarily
- Allow connections on ports 443 and 80
- Whitelist Office apps in your firewall settings
H3: Make Sure Your Microsoft Office 365 Pro Plus License Is Valid
- Check your Microsoft Admin Center (for work/school users)
- Verify your license hasn’t expired
- If part of a group license (organization), contact your IT department
H2: Office 365 Pro Plus License Types and Management
There are multiple ways the Microsoft Office 365 Pro Plus License is distributed:
| License Type | Description |
|---|---|
| Personal/Retail | Linked to a single Microsoft account |
| Volume (KMS/MAK) | Used by enterprises; activated via server or key |
| Microsoft 365 Plan | Often part of Microsoft 365 E3, E5, Business Plans |
| School/Education | Given to students/teachers by educational orgs |
You can manage licenses via:
- Microsoft 365 Admin Center (for IT admins)
- Microsoft Account Portal for individual users
- PowerShell scripts (for advanced enterprise automation)
❓ H2: Frequently Asked Questions (FAQs)
❓ Q1: How many devices can I use with a Microsoft Office 365 Pro Plus License?
A: Typically, you can install Office on up to 5 PCs or Macs, 5 tablets, and 5 smartphones per user.
❓ Q2: What happens when my Office 365 Pro Plus subscription expires?
A: Office enters reduced functionality mode—you can view documents but can’t edit or create new ones until you reactivate.
❓ Q3: Can I use Microsoft Office 365 Pro Plus without the internet?
A: Yes, but only temporarily. You’ll need to connect online at least once every 30 days for license verification.
❓ Q4: Is Office 365 Pro Plus the same as Microsoft 365 Apps?
A: Microsoft rebranded Office 365 Pro Plus as Microsoft 365 Apps for enterprise. It’s essentially the same product.
❓ Q5: Why do I see “Unlicensed Product” even after signing in?
A: This can occur due to:
- Conflicting licenses
- Activation token issues
- Corrupted Office install
Fix: Try signing out, removing licenses, and repairing the installation.
