I've been trying to solve this for several days now, many many hours of work with little results, so I'm taking off my hat and going to a tech support forum.
I recently purchased a Toshiba Satellite L840, and with it came Windows 8. Windows 8 is not for me, for many, many reasons, especially the fact that it absolutely cannot run my favorite DAW. So, naturally, I decided to downgrade to Windows 7. I used a Windows 7 Home Premium 64bit installation I have used many times with great success. This time, however, I've ran into issues that appear to have come from the combination of a Toshiba laptop, Windows 8 and USB 3.0 ports amongst other things.
So I've ran windows update and updated all important and optional updates. Usually at this point, everything works great minus a couple of drivers I might need to manually install which has never, ever been an issue for me in my life. I am unable to connect to a wireless network, and I have three USB ports on my computer, two of which are USB 3.0. Those two ports definitely react to having things plugged into them, they make the single USB 2.0 port unresponsive, and devices definitely take power from them but they are not recognized by the computer.
Didn't take me long to find out that I am missing some drivers. "This small challenge is no match for my plethora of experience in this area". This is what it displays as missing in Device Manager. They are all under the "Other Devices" tab where there is nothing else, and they were the only tab opened when I initially opened device manager, so my computer is definitely somewhat aware of the issue.
SM Bus Controller
Universal Serial Bus (USB) Controller
All of these devices have little yellow signs stating that they are not working properly. So, first thing first, I right clicked them and urged windows to search for the drivers within my computer and online, to instant non-success, every time. That must mean I need to download them manually.
I started downloading 64 bit drivers that apply to my model of computer and windows 7 operating system, all by the book. Throughout struggling with this seemingly easy task I believe I managed to fix the wireless controller, somehow, at some point, because it no longer shows up as not working properly. Basically, even though I downloaded the correct drivers for the correct model of computer and correct operating system, and even tried some in basic variations after that, they fail to install in a couple of different ways.
Quite specifically, I've tried updating Intel Chipset drivers and USB 3.0 drivers. With the intel chipset driver, it gets halfway through installation and tells me that I "Do not meet minimum system requirements to install this driver". Which is odd to me, as it is the driver made for my system. I even looked at the system requirements in the readme file of the driver download and my computer meets all of them. The USB 3.0 driver doesn't even respond after I extract it and windows asks me if I trust toshiba to make changes to my computer. No installation program comes up, so I went into the download file and tried using the setup.exe application to, well, set it up, and it informed me that I do not meet minimum system requirements to use the specific driver that I need to use. I looked into the readme file that displayed system requirements that my computer, just as last time, meets just fine if not greatly exceeds.
So, basically, I am unable to connect to a wireless network, I cannot use 2/3rds of my USB ports, I am having issues with my "SM bus controller" which I am unsure of the use but I think it has something to do with the chipset driver update, and a further unknown issue. I have tried many different driver installations from different sources, something I have not tried is selecting a driver from the device manager page but I am unsure of what kind of file I need to select, nothing from the driver installations can be selected which I suppose makes perfect sense as they are installation applications and not drivers themselves. I do not know how to get ahold of the drivers themselves alone.
Basically any input or help with this is greatly appreciated, as I'm having issues with completing schoolwork and using my DAW(need three USB ports to have it function in the way I'd like it to). I could get a USB hub as a temporary fix but the network issue is less patchable.
Here are some specifications:
Toshiba Satellite L840
Windows 7 Home Premium(2009)
Processor: AMD A6-4400M APU with Radeon HD graphics 2.70 GHz
RAM: 6.00 GB (5.47 usable)
64-bit Operating System