Error Code 80070520

Question

I can not login in to any Office 365 program with my student account. To work with onedrive I have to be able to login. The Screenshot below shows the error message with the error Code 80070520 after trying to login to word. I have Windows 10 on my laptop. I have already reinstalled Office 365 and also done the repair mode but the error is still there.

Answer 1

I can not login in to any Office 365 program with my student account. To work with onedrive I have to be able to login. The Screenshot below shows the error message with the error Code 80070520 after trying to login to word. I have Windows 10 on my laptop. I have already reinstalled Office 365 and also done the repair mode but the error is still there.

Hi Joël_28,

Fix:1

Based on the link provided in your error message, we encountered the article regarding troubleshooting hybrid Azure Active Directory joined Windows 10 and Windows Server 2016.

We assume that this domain account is synced to Azure AD, hence the suggestion to get more assistance in the Azure forum. However, even if it's not, your Office 365 account uses Azure to manage user identities behind the scenes, so if you're using Office 365, you're using Azure.

As the error implies a session error with Azure, we'd still suggest posting there to see if there are any suggestion that can help.

In the meantime, we did some further research and found a suggestion that might help:

Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:

322756 How to back up and restore the registry in Windows

1. Go to the registry editor (Win+R; regedit)

2.go to HKEY_CURRENT_USER -> Software -> Microsoft ->Office -> 16.0 ->Common -> Identity

3. Inside "Identity", create a new REG_DWORD value called "EnableADAL" and leave the value at 0

Fix 2: Run the Windows Troubleshooter

Learn More

The first thing you should try is run the Troubleshooter because that can fix the error automatically.

• Press the Windows key + I to open Windows Settings
• Open Update & Security section and select Troubleshoot
• Scroll down until you find Windows Store Apps
• Click on it and select Run Troubleshooter
• Wait for the scan to finish. If there are any problems and violations, the system will let you know and offer a fix.

Fix 3: Delete Windows Store Cache

Sometimes the cached files in Windows Store result in the error code 0x80070520 and clearing the cache can fix the problem.

• Press Windows key or open Windows Start, then type wsreset in the search bar
• Right-click on wsreset.exe and select Run as Administrator
• This will clean the Windows Store cache. Make sure you don’t press anything while the command prompt is working.
• Windows Store will open when it’s been reset and you should restart your PC.

We hope that these quick solutions helped you to fix error code 0x80070520. If not, try our automatic system optimizer to solve the problem.

Regards,

Mudasir

Answer 2

Hi Mudasir

The error is fixed! Fix 1 (about the registry) was the solution.

Thanks to you and also to Qing for your Help.

Regards,

Joël

Answer 3

Hi Joël_28,

Thanks for your updates.

According to your description, other user account can sign into Office normally.

I want to collect the Subscriptions of the affected account to check.

Besides, as we check the Office version via the following article:

Update history for Office 365 ProPlus (listed by date)

Others, I want to collect the product information screenshot as below:

Regards,

Qing

Answer 4

Hi Qing

Thank you for your prompt reply.

I removed all credentials about Office but the error is still there.

1. My version: Office 365 MSO (16.0.11328.20438) 64-Bit
2. I can sign into Office 365 Portal with my account.
3. Friends who study with me can sign into my office programms on my laptop with their accounts and have not the error. So I think there can be an issue about my account with office 365.
4. The issue occur before 3 weeks. I have not taken any operation before to my knowledge.

Regards,

Joël

Answer 5

Hi Joël_28,

Thanks for posting the question on our forum, I am very sorry about the inconvenience.

According to the error message, I suggest you try the following steps to check the result:

1. Close all Office apps.
2. Open File Explorer.
3. Type this path: Control Panel\All Control Panel Items\Credential Manager.
4. Click Windows Credentials and remove all credentials about Office.
5. Launch Office apps and sign in your Office account again.

If the issue still exists, could you please provide the following information for further analysis?

1. The version of Office. (Click File>select Account)
2. Can you sign into Office 365 Portal with the account?
3. Check if other accounts you can sign into.
4. When did the issue occur? Which operation have you taken before the issue occurred, such as updating Office?

Regards,

Qing