First, I created a document library and placed 5000 documents in it.
I then received this error message from the web part on the front page of my team site:
The first solution is to create a view with less than 5,000 items for that view. I created a Limited View that only displayed a total of 30 items. I then changed the web part on the home page to utilize this new Limited View but wait....... the error message is still the same!
Not a problem, I will go into Explorer View and remove some documents - yet Explorer View opened but does not dispay any items.
First solution: Get the number of documents in the Document Library to less than 5,000.
I selected the 5000ItemLimitLibrary link on the home page (simply click on the name of the library on the SharePoint site) and went directly into the Document Library. The documents in the Document Library displayed properly.
Select the checkboxes next to the Document names in the Document Library (or select the checkbox next to the Type option at the top) and then select Delete Document.
This will need to be done until the number of items is below 5,000 - after that, the web part on the home page displays properly:
Second Solution: Utilize folders. In this situation, I created a folder titled "Folder" and copied over a couple thousand documents. The web part still displays on the screen and there are more than 5,000 documents total in the document library. Approximately 2,000 in the folder and 3,500 in the remainder of the library.
I hope this helps and I am open to any other possible solutions to resolve this issue. I am going to be doing some testing about what happens when a folder has over 5,000 documents in it and will report back those results in the upcoming days.