You are attempting to open a file that was created in an earlier version of Microsoft Office. This file type is blocked from opening in this version by your registry policy settingYou are attempting to open a file type File_Type that has been blocked by your File Block settings in the Trust Center.You are attempting to save a file type that is blocked by your File Block settings in Trust Center
How to change File Block settings in Microsoft Office programs
The issue is mainly noticed when a user tries to open an embedded or linked Office file in an Office application. A simple change in settings can fix the problem. Let’s see how!
You are attempting to save a file that is blocked by your Registry policy setting
To fix this issue, try changing the File Block settings to disable the restriction imposed on certain file types as follows:
1] Open Office application and go to Options window
Open any office application like Microsoft Office Word, PowerPoint or Excel and go to the ‘File’ tab. Click it and select ‘Options’ from the sidebar.
2] Access Trust Center Settings
Now, when the ‘Options’ window opens, select ‘Trust Center’ from the left pane and hit the ‘Trust Center Settings’ button visible in the right pane. This section contains Privacy and Security settings that keep your computer secure. As such, it is recommended to not change these settings. However, if you do not mind tweaking it, proceed further.
3] Clear Open and Save boxes for File Block Settings
Here, in Trust Center window, select ‘File Block Settings‘, and then clear the ‘Open’ or ‘Save’ check box for the file type that you want to open or save. Clearing the boxes enables a user to allow user to open or save the file. Checking the same blocks access to the file/s. When done, hit the ‘OK’ button visible in the lower right corner of the Trust Center window and try opening or saving the file that was blocked earlier. The problem should have been resolved by now. So, now when you try and open an Office file you should no more see ‘You are attempting to save a file that is blocked by your registry policy setting’ error message in Windows 10.
How do I fix the upload blocked in Word?
You may encounter an UPLOAD BLOCKED error when you try to save a file from Word or some other office apps (say Excel) to a connected OneDrive account or service. This happens when are signed in to the Microsoft Office app with a different account and it doesn’t have permission to upload files to the connected OneDrive account. To fix this issue in Word or other Office apps, you should use the same account for the Microsoft Office app and OneDrive or reconnect the OneDrive service.
Why is Word not letting me access my documents?
The reason why you aren’t able to access a document in Word is probably the file permissions are restricted or not allowed for your user account. In that case, you need to change file permissions. You should also check if the Word file that you are trying to access is blocked and if the Protected View settings are enabled for that particular file. If yes, you have to unblock that Word file by accessing the file properties and also disable Protected View settings using the Trust Center Settings in Word.