3 file limit error in Personal Vault in spite of 1TB family subscription

Even though you're part of a Family subscription, it looks like your OneDrive client is treating your account like a free plan — this could happen due to:

• A sync issue between your Microsoft account and OneDrive
• OneDrive not recognizing your subscription tier correctly
• Being signed into OneDrive with a different Microsoft account than the one with the Family plan

Reset OneDrive (Not Just Reinstall)

Even after reinstalling, the cache and registry entries may still cause issues. Let’s fully reset OneDrive:

Windows:

%localappdata%\Microsoft\OneDrive\onedrive.exe /reset

If it doesn’t restart on its own, run:

%localappdata%\Microsoft\OneDrive\onedrive.exe

This won’t delete your files, but will force OneDrive to resync everything with fresh settings.

Confirm Your Microsoft Account is the One with the Family Plan

Go to:

https://account.microsoft.com/services

Check that:

You're signed into the correct Microsoft account

It shows Microsoft 365 Family under subscriptions

If not, sign out and sign in with the right one.

Check Vault Access via Web

Go to:
https://onedrive.live.com/ → Sign in → Open Personal Vault

See if the 3-file restriction message appears there. If it doesn’t, the issue is just in the desktop client, and a reset should solve it.

Sign Out & Re-Link OneDrive

• Right-click the OneDrive icon → Settings → Account tab
• Click Unlink this PC
• Then sign in again with the correct Microsoft 365 Family account

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Hope this will help you.

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