SharePoint Error 0x800700DF: The File Size Exceeds the Limit Allowed and Cannot be Saved

When working with SharePoint 2013 and Sky Drive Pro I was transferring some files from our OnPremise server to Microsoft’s Office 365 site when I came across error  0x800700DF: The File Size Exceeds the Limit Allowed and Cannot be Saved. Generally speaking this is due to any of the following reasons:

1. The upload quota size on your SharePoint site.
2. The almost 50mb file upload limit that comes by default on Windows.

To be safe always check #1. As far as I know Office 365 has a 2gb file upload limit last I heard so that is not the issue in my case. The second scenario happens when you try to exceed the default limit of 50000000 bytes (47.68… Mb). In order to avoid this issue you have to manually increase the size in the Windows registry to the maximum allowed (I hear WebDav allows 4gb maximum which happens to be the 32bit limit of the field or 4294967296 bytes). Below are some simple steps you can follow to set the limit to 4gb:

1. Open the Windows registry  by using the regedit command (Control + R or type regedit when launching the start menu in Windows 8).
2. Browse to
   • HKEY_LOCAL_MACHINE
     • SYSTEM
       • CurrentControlSet
         • Services
           • WebClient
             • Parameters
3. Right click on the FileSizeLimitInBytes and click “Modify“.
4. Click on Decimal, and type 4294967295; then click “Ok” to save. We are using one byte less as 4294967296 exceeds the 32bit size of the field by 1 (remember 0 counts). If you prefer you can type 0xffffffff for the hexadecimal value.
5. Restart the “Web Client service” using Services snap-in (Ctrl+R and execute services.msc).