Requirement

For a proof of concept, users need to be able to upload files that are more than 500 MB. This is part of a plan to use SharePoint to replace redirected folders.

Problem:

Webdav has an inbuilt size limit of 50 MB. This limit is on the client side and nothing to do with SharePoint configuration.

Solution:

The limit can be changed by editing the registry key:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\WebClient\

Parameters\FileSizeLimitInBytes

Change the DWORD Decimal Value to file size specified in bytes, e.g. 2000000000 for 2GB.

Reboot.

*Note: There is a file size limit on a 32-Bit DWORD.

Testing:

Performed several tests before and after changing the DWORD value.

Before the change, copying a file to SharePoint would result in a time out even though the file size was within the limit defined in SharePoint configuration. After changing the DWORD value, I was able to upload multiple files ranging from 64 MB – 1.1 GB without any time outs.