Several Windows users have addressed the issue of encountering the Upload blocked error when working with Microsoft Office files hosted on a OneDrive account . The detailed error message is as follows:
"Upload blocked. You must sign in to upload your changes to this location."
After investigating this particular issue by looking at user reports and various fix strategies that users have used to fix this issue, we have identified a number of scenarios that lead to this upload blocked error. This error can occur due to error in OneDrive on Windows 10, badly saved credentials, problem with linked OneDrive account, badly cached data in Office, Office not involved in syncing or invalid values in registry identity key.
If you are looking for ways to fix this error pop-up, this article gives you different possible solutions. It is recommended that you try the following fixes in the same order that we listed them.
Fix 1 : Install any pending Windows updates
1. Press Windows Key+R to open the Run dialog box . Type ms-settings:windowsupdate and press OK to open the Windows Update tab.
2. In the right pane of the Windows Update tab, click Check for updates . Wait for the first scan to finish.
3. After the scan is complete, proceed to install the recommended updates according to the on-screen instructions.
4. After each update installation , restart your computer and check if the error is resolved the next time you start the system.
Fix 2 : Using Office to sync Office files
This is the most common solution to this problem as most affected users have reported that they were able to fix the problem by configuring OneDrive to rely on Office to sync files created using Office apps.
1. Click the OneDrive icon in the taskbar .
2. On the OneDrive menu, click Help & Settings , and then click Settings .
3. Select the Office tab at the top of the horizontal menu.
4. Now check the Use Office applications to sync Office files I open box .
5. At the bottom of the Sync Conflicts menu, select Merge changes or keep both copies and save the changes by clicking OK . p>
6. Reboot your system to apply the changes made, and then check if the problem occurs again.
Fix 3 : Remove Office credentials using Windows Credentials Manager
Other users who are struggling with this issue have reported that an instance of corrupt credentials stored by Credential Manager can be a cause of pop-up upload being blocked .
1. To open Control Panel , press Windows+R key and type control in the Run dialog box .
2. From the Control Panel , locate and click Credential Manager .
3. Select Windows Credentials on the right side and then look for Microsoft Account in the saved credentials .
4. Expand Microsoft account and then click the Remove hyperlink to remove it. Repeat this step with each mention of the Microsoft account until no such credentials remain.
5. Reboot the system and see if it helped you solve the problem.
Fic 4 : Unlink OneDrive Account
1. Click the OneDrive tray icon at the bottom right .
2. From the menu, select Help & Settings , and then select Settings .
3. From the OneDrive main menu, select the Account tab . Then click Unlink this PC to remove your current account.
4. At the confirmation prompt, click Unlink Account .
5. Restart your PC to complete the logout process.
6. At the next startup, open OneDrive and enter your credentials to link your account to the PC. Repeat the same steps and check if the problem is resolved.
Fix 5-Clearing Microsoft Office cached files
Using Office Upload Center for Office 2019, 2016, 2013 and 2010
1. Open the Start menu by pressing the Windows key and typing Office Upload . From the results , select Office Upload Center .
2. From the Upload Center , click the Settings menu .
3. In the Upload Center Settings , find Cache Settings and click Clear cached files to remove all temporary files associated with the Upload Center.
4. At the confirmation prompt, click Clear cached information .
5. After the process is complete, boot your system to check if the troubleshooter worked.
Using Office Options in Microsoft 365
Upload Center is being replaced for Microsoft 365 users, where files that didn't go through the upload process and need the user's attention appear under Files requiring attention. So the cached data can be cleared through any Office application menu options.
1. Open any Office app (Word, PowerPoint, Excel, etc.). Go to the File menu and select Options .
2. In the Options window, select the Storage tab and scroll down to find Cache Settings . Click Clear cached files to remove the cached data files. In the confirmation dialog, click Delete cached files .
Fix 6 : Deleting identity keys via registry editor
Some users encountering this problem have reported that it may be due to an inconsistency with a corrupt identity value in the registry. This is also common for computers on a domain network.
1. Open the Run dialog box (Windows+R) and type regedit to open the Registry Editor . If prompted by the UAC , click Yes to grant administrative privileges.
2. In the Registry Editor , navigate to the location below or copy and paste it into the editor's navigation bar.
HKEY_CURRENT_USER\Software\Microsoft\Office.0\Common\Identity\Identities3. In the left pane , right- click the Identities button and select Delete from the context menu.
4. After the Identities folder is deleted, close the registry editor and reboot the system. Check if the "Upload blocked" error is resolved by repeating the same actions that caused the problem previously.
Thank you for reading.
We hope you were able to fix the OneDrive upload blocked error on your computer. Please let us know which solution worked for you.
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