Getting Error Code: 49, during update license on my new Laptop

Hi Avanish,

My name is Jason and I am an independent advisor and windows user like yourself.

What Error 49 Means

• Error 49 = “AADSTS50049” → Microsoft account sign-in failed due to missing or invalid token, this is often caused by: Corrupted Office activation cache

  Incorrect account sign-in
  
     Network or proxy interference
  
        OEM license not properly linked to your Microsoft account
  

Step-by-Step Fix

1. Confirm the Correct Microsoft Account

Go to https://account.microsoft.com/services

Sign in with the account that came pre-linked to the laptop

Look for Office 2024 license under “Subscriptions & Services”

If it’s missing, the license may not be properly assigned — contact the seller or OEM.

2. Reset Office Activation

Close all Office apps

Open Command Prompt as Administrator

Run:

cmd

cd "C:\Program Files\Microsoft Office\Office16"
cscript ospp.vbs /dstatus
cscript ospp.vbs /rearm

Restart your PC

Open Word or Excel → Sign in again with your Microsoft account

3. Clear Cached Credentials

Open Credential Manager (search in Start)

Go to Windows Credentials

Remove any entries related to MicrosoftOffice16_Data or Office

4. Check Date and Time

Incorrect system time can block activation

Go to Settings → Time & Language → Date & Time

Enable Set time automatically

5. Use Microsoft Support and Recovery Assistant

Download Microsoft Support and Recovery Assistant (SaRA)

Run the Office Activation Troubleshooter

It uses AI-assisted diagnostics to repair licensing and sign-in issues

If Still Unlicensed

Contact Microsoft Support:

https://support.microsoft.com

Choose Office → Activation & Licensing

• Provide your laptop’s serial number and proof of lifetime license