Hello there,

Do you know how to see and manage all drivers which installed on Windows? I'm trying to clean that USB Card Reader dongle's drivers; probably that will be the solution (BTW USB PORTS ARE ALIVE!! yay Can't use them in Windows though, especially 3.0 ones)

So far, what did i do?

1- Deleting unknown USB devices from Device manager, used "Scan for hardware changes" option
2- Downloaded USB drivers from Toshiba website for my laptop, reinstalled it. Nothing changed.
3- Used Windows System Recovery three times. Tried to revert it to Aug 14, first attempt failed; second attemt failed first, but it said "it was successful" later when i rebooted PC. Tried to do that third for an older one as well (same day), it was totally successful but USB ports are still unusable.
4- I thought that card reader dongle might fried USB ports, also a SG user said that. But i could use my USB keyboard and see the red light under my mouse while i'm on UEFI (BIOS), so i'm sure ports are OK!

I'll try these:

1- Try to clear the automatically installed driver when i plugged in that dongle. But i don't know how to reach it and wipe them all.
2- I'll try Ubuntu LiveCD feature to test USB ports once more, just in case.
3- I'll try "Repair Windows 8" option under the charm bar. I don't trust Windows 8 at all but...
4- I'll use Toshiba Recovery Discs (last option)

Partially solved the problem, guys. I'm searching for AMD 3.0 xHCI Drivers, since currently i can't use my 3.0 ports because Windows don't be able to install two other xHCI drivers in the list of Device Manager. It says "Windows found the driver files but for some reason it couldn't install it".

How did i solved it (partially):

That was dumb actually. Right clicked on unknown devices and selected "Update drivers for this device" one by one and chose manual update. Selected Windows folder with sub-folders and hit next. Found most of USB drivers except 3.0 ones. So, i still can't use other two ports... yet.

Original Post:

I have a serious problem right now. About half hour ago, i used a card reader dongle on my Toshiba Satellite L850D. After that, i opened the SDCard inserted in this dongle and... boom. Windows (8.1 x64) crashed, i had to shut it down with power button.

And since then, i can't use any of my USB ports, in Device manager, there are a lot of unknown "Universal Serial Bus USB Controller" entries and 2 unknown devices. It can't find any new drivers, i can't find USB or Chipset drivers for this model (found one USB driver which was 46 MB of a zip file from Toshiba web site, but it was absurdly ATI Catalyst installer).

Now, i'll try to use system restore for two days ago.

But please, just in case, if you have opinions, please share them.

Much appreciated.

(sorry, no giveaways)

Update:
Windows Recovery didn't solve any problem.

It said it couldn't recover to August 14 but now it says it could -it seems so- but all USB port drivers are still have yellow exclamations and USB ports don't work apparently.

I should have use SDCard adapter instead of an unknown dongle sigh