While Performing setup for SharePoint training lab PCs for some customers of my company (Devosis), I usually fix an issue that appears on SharePoint Server 2010 when the user tries to add a new document from a Word Client.
The problem appears when user tries to add a new document using SharePoint ribbon as the following:
The Microsoft Word will not be able to store the document in the SharePoint site due to some security settings, and it will show an error “Word has encountered a problem” and “There is a problem saving the file..” as the following:
To fix this: Goto File-> Options –> Trust Center, and then click the Trust Center Settings:
Then select from the right tabs (Protected View) and uncheck the “Enable Protected View for files located in potentially unsafe locations” option.
Now the word client will work fine, and it will be able to save the files into the document library.