Mike the problem with those updates is that they were installed in the wrong order. It's a Microsoft error that they've corrected. They should be deleted, then reinstalled.
Please read the explanation and instructions here: http://answers.microsoft.com/en-us/windows/forum/windows8_1-networking/dell-venue-pro-loses-wireles...
So the updates that are deleted won't compromise your security. Here are the functions of the updates:
KB2887595 - http://www.microsoft.com/en-us/search/DownloadResults.aspx?q=KB2887595
KB2883200 - http://support.microsoft.com/kb/2883200
KB2903939 - http://www.microsoft.com/en-us/search/DownloadResults.aspx?q=KB2903939
These updates are to improve the "Windows 8.1 Experience" mostly, and none of the patches say anything about security updates.
It still happens for me. I deleted the updates and if I'm idle for a while, the network adapter shuts down (including Bluetooth).
It's starting to really annoy the *** out of me that Dell has not provided a solution to the problem.
This did help with my wifi problem but my Venue 8 pro has another when it comes to seeing the infamous Blue screen of death when I try to access the cameras
I reset mine back to factory (I've lost count how many times I've had to do this now due to faulty windows updates) and it's all working as it should so there is at least afew more that our little tablets don't like