yes
Theoretically, yes. Windows update can be set to downloaded the newest hardware drivers. And new drivers could easily resolve some kind of hardware issue. I would need to know more about the situation.
run windows update and do a manual upgrade and under hardware upgrades there will be basic upgrades for each hardware device to add to your basic windows updates
No. Windows update doesn't update drivers automatically in any circumstance. When installing a device, you can instruct the OS to go online and find the driver, but it's a manual process, not an automatic one.Haven't confirmed this myself, but, according to Microsoft Official Academic Course, Windows 7 Configuration, Pg 139, "If Windows 7 is configured to use automatic updating, the system will download device drivers only for hardware that does not have a driver installed."
You can update to Windows 8 by purchasing a Windows 8 installation disk but make sure your hardware can support the update.
Device manager
Type device manager into the start menu and open device manager, locate your web cam in the list of hardware installed on your computer and right click on it. Then click update driver.
In the device Properties dialog box, click the Drivertab, and then click Update Driver to start the Hardware Update Wizard. Follow the instructions to update the driver.You may be prompted to provide the path of the driver. Windows may have the driver built-in, or may still have the driver files installed from the last time that you set up the device. If you are asked for the driver and you do not have it, you can try to download the latest driver from the hardware vendor's Web site.
You would use Device Manager and then "update driver" under the Display Device.
Windows Update.
The Hardware Update Wizard
Devices and Printers, Device Manager or Windows Update. Keep in mind some hardware require drivers not found here. Use following DVD or manufacturers website. Additional: Windows features can be turned on or off trough Programs and Features/Uninstall or change a program.
Use Windows Update. You may need to set Windows Update to automatically download and install recommended updates. Install the software from the equipment manufacturer. For example, if the device with the disc, the disc may contain device drivers for installed software. To download and update drivers. Use this method can be installed from the manufacturer's Web site to download drivers. If Windows Update can not find the device driver and the device is not installed with the driver software, then do this. Windows 7 Compatibility Center website lists thousands of devices can be directly through the link to download the driver.