Device Won't Connect to PC

For the past week I've been trying solution after solution found from the net to try and get my HTC One to connect to my computer and show up as a portable device. I'm running Windows 7 x64 SP1 with all updates possible, latest drivers and chipset drivers and even installed optional drivers to try and fix the problem. I've tried USB Debugging and nothing happens, tried uninstalling all drivers from USB device manager and reinstalling which also didn't work, tried installing MTP drivers seperatly, nothing happens, tried windows update's htc drivers, they fail to install every time.

My problem in short is, I cannot get my device to connect to the computer so I can use the storage space to add/remove/edit files on my phone.

I've recently tried a program called "DoubleTwist" which actually got the HTC Sync Manager to recognise my phone, but even that shows no storage available.

My details:

Windows 7 SP1 x64 PC,
HTC One in metallic blue 32GB,
HTC MTP Device Drivers Failed
MTP USB Device Drivers Failed x3
Developer unlocked,
USB Debugging On/Off

I can edit in any additional details required.

TrundleButt

I've tried uninstalling the failed drivers but they still fail every time i plug the device in, It's not really a problem with htc sync manager as I've pretty much given up on that already. My problem is that I can't get my computer to recognize my device, only as a cd drive which is for the installation of htc sync manager and and relevant drivers.

I've tried your solution 5 times before and it doesn't fix the issue as it's the drivers failing to install and the fact it won't accept drivers for my usb device for MTP or pretty much anything related to my device.

Anyone know of away to remove the bad drivers and install fresh working ones without crippling the use of my mouse and keyboard? because windows suggests I remove the usb host controller drivers which kills the use of all usb ports on my computer, meaning i have to replug them in turn re-installing the usb host controller drivers at the same time.

still got the problem of not being able to connect my device and have it recognized, by the computer as mass storage, removable storage, or MTP. that is the real problem I'm trying to fix, after that I may consider trying to get htc sync manager to work.

Any help at all would be nice... Anyone?

I guess my problem is unfix-able then, just to make it clear, i don't give a stuff about the sync manager, i just want to be able to have my computer recognize my phone so i can access it through my computer...