Renewing a Developer Licence on Windows 8/RT

Here’s a quick tip if you have some side loaded apps on windows 8/RT and your developer licence has expired. When this happens the apps have a cross on them and are unable to open taking you to the store.


Error “Your developer license has expired. To continue to use this app, please renew your license”


Open PowerShell with admin privileges and execute the following command


This will prompt you through the same dialog as when installing your first side loaded app. A developer Licence expires every month so a quick script to bring up this prompt could be handy.

Microsoft Surface File Size Limit with Explorer Fix

Today I ran into an issue on a win RT device when trying to download few folders from our SharePoint site using Explorer.

The Problem

This problem occurred when I used the ‘Open with Explorer’ interface in the Library Tools > Library pane to get the required folders, as I wanted to copy a few folders down from SharePoint onto my Surface.

One of the files failed to copy with the following error:

An unexpected error is keeping you from copying this folder. If you continue to receive this error, you can use the error code to search for help with this problem.

Error 0x800700DF: The file size exceeds the limit allowance and cannot be saved.

The file was only 90MB which seemed strange.

The Solution

Run REGEDIT as admin. One way of achieving this is to bring up the start menu type REGEDIT (type in full to make it appear in the apps search). Right click or pull down gesture to select it and click the run as admin option on the bottom app bar.

Then drill down into the following in REGEDIT


Then just edit the FileSizeLimitInBytes parameter to the desired amount (it offers a decimal value) and restart your surface.

You should now be able to use Explorer with SharePoint to grab those files worth having!

Tom Testing His New Blog!

Hello, I’m currently setting up my first blog and this is a post to check its configured correctly. All being well this should go to my LinkedIn and Twitter accounts auto-magically .Flirt male

Hopefully I’ll have some useful and interesting stuff coming soon around the MS Technologies and solutions to problems I come across in my role of Software Developer in Test, for now here’s a picture (to make my post prettier) of the case I just bought for my gaming rig.