Unknown USB Device (Port Reset Failed)

You know, there is no shame in asking someone else to look at any problem.  Why would you recommend that the user go back to Windows 7 instead of diagnosing and fixing the problem.  Have you installed all the latest drivers?  Any time you perform an upgrade, the 1st thing you should do is get the latest drivers available for the OS you already have and install BEFOREHAND, hopefully getting ones that are also compatible with the new OS you are going to.

That said, Microsoft might overlay some of your drivers during the update process.  This is not a bad thing, and they do it for a reason.  Lots of manufacturer-supplied drivers are designed to get the most out of the devices they were written for, and may not be designed for the new OS or they may push/stress the system components too much, causing a higher rate of upgrade related failures.  The upgrade process needs to do whatever it takes to ensure the highest rate of success, so they will often substitute generic drivers for critical components ... things that the system absolutely needs to work in order to boot properly.  It will often resort to using standard VGA graphics mode because all PC compatible graphics cards, built-in or add-in guarantee they their cards are 100% compatible with the standard VGA mode.  Once your upgrade is complete, you can and should upgrade your drivers to the latest versions, once the upgrade completes successfully.  In fact, when an upgrade fails, the 1st step to get around it is to remove any internal or external hardware that is not needed to complete the install (i.e. add-in graphics, network, sound, modem cards, printers, etc.) 

You haven't mentioned that you have tried any debugging techniques, such as substituting other mice or checking the Hardware ID against the drivers you tried to install but yet, you are willing, even planning on telling a user that they should go back to the previous OS because you can't figure out why a single piece of hardware isn't working correctly?  If this is how you handle defeat then, why are you working on their system in the first place?

Please contact me (via response) and I would be happy to help you figure out the problem.  There is an answer, and it is probably simple.  I always prefer to work THROUGH a problem, not go around it.  Otherwise, you will never learn anything.

Why, you ask?  Is it a Microsoft device?  If not, then it is not up to them to fix problem you are having with someone else's products.  Please place the blame where it belongs.

It is ALWAYS the vendor's responsibility to make sure they are compatible with the Operating System, not the other way around.  Contact the vendor, explain your problem and see if they have a fix for it.

C'mon, wake up and smell the coffee. You say you having an issue with your (apparently) single iPhone connecting to 2 laptops?  This sounds more like you have a bad iPhone cable or bad connector in your iPhone as I rather doubt that ALL the USB ports are defective on both laptops or that the drivers are bad on both systems, unless you loaded the wrong drivers.

Please do some research and post everything you have tried so maybe, someone can help you figure out what is wrong.  **** without doing any sort of investigation just makes you appear ignorant or stupid.  First off, given the "talent" you appear to NOT have, I feel the need to stress that the connectors built into the iPhone are not impervious to damage, so if you have yanked the USB cord at any time, you may have damaged it or the built-in connector.  I have seen this many, many times.  Also, with the iPhone, you have to install iTunes at least once on most systems to have the drivers installed so the OS knows what the heck it is.

You yourself admitted that "you haven't tried anything" but also say, in the same breath that "none of the fixes worked".  What fixes are you referring to and what exactly happened when you tried each one?  DO other devices work in the same USB ports when you plug them in?  Is the iPhone recognized in other systems?  Give us some clues please.

Reistalling windows seems to do the trick, though now with windows 10, users seem to lose all control over updates ie. ms updates are automatically downloaded, and windows defender cant be switched off without downloading a patch from microsoft so forced to consider deactivating my 3rd part anti virus software. Still, it does seem more stable now . i like what firefox did with their browser where it scans for incompatiable add-ins , wonder if MS shd consider this also for driver before the installation so users can decide whether to proceed with the upgrade..

You obviously didn't read the subsequent post where i say that reinstalling windows 8.1 fixed the issue in the end.

But good job on your stupid rant.

The fact is microsoft drivers often suck. Always best to go to the manufacturer first. This whole issue was caused by microsoft drivers so what other evidence do you need.

Windows 10 has **** up even more drivers. If you have had to work on any windows 10 system, they are almost always driver problems after an upgrade. And yes most of the times it is  microsoft drivers that are the problem and we have to wait for the manufacturer to release an update to get things working 100%. Microsoft is not apple, its not a closed ecosystem that they control so there will always be edge cases. Always best to wait 1-2 years after an OS comes out, and some OS'es are never ready as VISTA and windows 8 can show you. Windows 7 is still rock solid. Windows 8.1 still has problems years later, such as graphical corruption, wireless disconnection and VPN issues. Sure not every machine has a particular problem, but that's the point. Its a driver issue.

Windows 7 drivers are as stable as windows 2000 was back in the day in my expert opinion on the matter. I see very little issues with win7 that are caused by drivers. It has been out for 6 years and it shows how mature it is as a platform now. I would have no problem recommending it over 8 or 10 still in 2015. no problem. Unless your using touch of course.