Networking improvements

The widespread adoption of cellular connectivity in an increasing number of laptops and tablets have made our computing devices more mobile than ever before, but it has also given rise to an age of data caps, bandwidth throttling, and exorbitant prices from carriers. In the United States, unlimited data plans are a thing of the past, and as such any operating system worth its salt is going to have to be more careful about what, where, when, and how it sends and receives data.

To that end, Microsoft has instituted several features in Windows 8 that both users and developers can utilize to measure data usage and keep it in check.

Thanks to class drivers (which we'll discuss in just a minute), mobile broadband chips are treated as first-class devices in Windows 8—the same as wi-fi, ethernet, Bluetooth, and USB 3.0, among others—which means that broadband adapters can be turned on and off through the Windows GUI in the same way that wi-fi and Bluetooth now are, and there's also an Airplane Mode can turn all of it off in one swoop, just like on a smartphone (see above). As on phones, Windows will automatically prioritize wi-fi networks when both wi-fi and cellular are available.

This increased integration into Windows has many benefits: if your laptop or tablet has a SIM card installed, Windows can automatically detect which carrier it's associated with and download any available mobile broadband app from the Windows store, and carrier-unlocked laptops and tablets can choose between multiple cellular carriers if the hardware supports it. Windows also offers estimated data usage figures when connected to cellular networks, and when connected to a cellular network the OS will adjust its default behaviors to conserve bandwidth (for example, deferring the automatic downloading and installation of Windows updates until wi-fi is available).

Though it is off by default, these bandwidth conservation features can also be enabled for traditional wired and wireless network connections by right-clicking the name of the network you're connected to. While on a metered network, apps can now use new APIs to force network-aware Metro apps to use less data when possible (another example: using a low-bandwidth movie stream rather than a high bandwidth one). Network-aware Metro apps are required to use these APIs, and users can check how much bandwidth apps are using (both on metered and non-metered networks) in the new Task Manager.

Improvements to networking in Windows also extend to file copying, namely the SMB networked file sharing protocol. In Windows 8, the protocol can now shift dynamically between different network adapters during copy operations so that it always uses the fastest possible connection to transfer files. To demonstrate, I began copying a few gigabytes of data to a fileserver on my home network using a slow wireless G connection:

Then, without pausing the file copy operation or disabling my wireless card, I plugged the laptop into the network with a gigabit ethernet cable:

As you can see, as soon as Windows detected a faster network interface, it without complaint began copying the files using the faster connection. I then unplugged the laptop from the ethernet cable:

Again without issue, it switched back to the slower connection and continued copying the files. While this flexibility is impressive, it should be noted that it can only kick in for file transfers between two Windows 8 (or Windows Server 8) computers.

Drivers

Windows Vista broke a lot of things when it launched, and drivers was a big one—at least part of Vista’s caustic reputation was earned because third-party drivers made the platform so unstable. Since then, Microsoft has been committed to maintaining driver compatibility between Windows versions. During my testing, I found that the vast majority of drivers certified for Windows Vista and Windows 7 worked without issue in Windows 8, lending credence to Microsoft’s assertion that Windows 8 will be able to run on anything that could run Windows 7.

Windows 8’s main innovation is the sheer number of class drivers it introduces. For the un-indoctrinated, class drivers target defined specifications rather than specific hardware. Class drivers are the reason you don’t need to install specific software to run things like mice, keyboards, or USB 2.0 controllers.

Windows 8 adds new class drivers for things like USB 3.0 controllers, printers, motion sensors, mobile broadband cards, and a few others, all of which should be very useful on modern systems running Windows 8 or Windows on ARM. My personal experience extends to the USB 3.0 driver, which worked just fine for the oddball Fresco controller in my Intel desktop board, and the printer drivers, which worked well for a variety of local and networked printers I connected to from my various Windows 8 testbeds.

Microsoft also provides a new basic display driver in Windows 8. While the old generic display driver ran using the Aero Basic theme, the new driver appears to have basic support for Aero effects and transparencies. Among the systems that I tested, only a few had GPU-specific graphics drivers that installed from the DVD. While this may not be true of the RTM version of Windows 8, it looks like Microsoft is scaling back on the number of included graphics drivers to save space—you’d best check Windows Update or your manufacturer’s web site for updated graphics drivers, if they’re not included.

Other Updates: Bitlocker, File History, Remote Desktop, and Windows Defender Under the Hood: DirectX 11.1 and WDDM 1.2
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  • Andrew.a.cunningham - Friday, March 9, 2012 - link

    Hopefully some of those multi-monitor and "four corners"-related issues get worked out in the release candidate. It would help a lot.
  • Impulses - Saturday, March 10, 2012 - link

    I'm not holding my breath for that... It took them until Windows 8 to add basic taskbars for the extra screens, it'll probably fall to 3rd party developers to make the whole Metro/Desktop paradigm usable with multiple displays, just like we relied on them for multiple taskbars, better wallpaper support, etc.
  • Exodite - Saturday, March 10, 2012 - link

    Well, I don't know if my 2c is worth much but the answer to that would - in my opinion - be 'why should we?'.

    I don't /have/ to use Windows, it's a personal choice.

    If the UI, or anything about the user experience in general really, ends up being a bother for me I can quite easily migrate to another platform.

    I suppose this is a good thing, if taking the long view. Microsoft might inadvertently encourage diversification of the desktop computer space by making W8 horrible to use for a notable minority.
  • B3an - Friday, March 9, 2012 - link

    @Andrew and everyone else who worked on this - great article :)

    It's nice to FINALLY see a very detailed article that shows all the improvements in Windows 8. Too many people are focused on just Metro. I'm sick of having to write long posts explaining to people how to use Win 8, and why it's faster and more powerful for most tasks if people would actually just learn new things, and then having to mention all the new features to the desktop. Now i can just refer people to this article ;)

    Great work.
  • jabber - Friday, March 9, 2012 - link

    Don't have time to learn new stuff that's not putting money in the bosses wallet, just need to get the work I'm paid to do done ASAP. That's why Windows 7 worked so well.

    Companies don't pay folks to sit and learn learn new software or want to hear them bleating on about how they don't know what to do.

    Too much like hard work. Sorry but that's how it is. Business as usual is king.

    I too can see some great improvements in 8 its just that it (as in Metro) is NOT designed for a standard run of the mill PC environment.

    Windows tablets are not going anywhere. That ship sailed for MS years ago. It's the Zune all over again in that regard. So just keep it for phones and maybe adding a little fun to those desktop all in one monstrosities that HP etc. make.
  • B3an - Saturday, March 10, 2012 - link

    I'm so glad MS have not listened to people like you with Win 8. If they did then im sure we'd all still be using Windows 3.1.

    And your comment makes no sense. Win 8 is faster for work when you actually get used to it, so in the long run this will pay off as people will be more productive. And people have to learn new software all the time, like the Ribbon in MS Office.
  • Magnus101 - Friday, March 9, 2012 - link

    I am on a multi-monitor setup and I tried the dev version in Virtual Box last month.
    I had to turn off Windows 8(had to do a different setting for the virtual machine, I think).
    Couldn't find where to power off.

    Found out by a video that I had to hoover in the right hand corner, but that didn't work. I thought the version I used had dumped that ability (the youtube video was quite old).
    So I had to look up a shortcut to open up the start menu and finally get it to shut down.

    Of couse the problem was that I used multiple monitors (use 3) and that I coudln't "snap" to the point where the start menu was.
    This shows how extremely bad this is.

    Another idiotic thing with metro is that programs behaves like apps on a mobile phone. They don't really shut down unless you force them to.
    I tried one of the metro games where there was some music playing. There was no option to quit the game, so when I left it, the music was STILL playing in the background.

    I had to force close the damn thing to stop the music playing!

    And I find absolutely nothing that makes my experience better with metro than the Windows 7 taskbar. Less clicks and more things in a smaller place is ideal for me. Not to mention that the horizontal scrolling is idiotic in metro.

    Look at how Unity in Ubuntu was received when it was released. People fled to Linux Mint, where there are options to use the "old style" desktop.

    One thing that was really good with Windows 8, though, was the new Explorer with many enhancements and actually more space (the bottom part is free compared to win 7).

    I just wish there would be a "Windows 8 desktop" version where the users like me who don't have a windows tablet, Xbox 360 or a windows phone could enjoy the other enhancements not letting metro totally destroy the experience!
    I guess 80-90% will still use older windows version even at the end of 2013 if nothing is done about this crap. Things like metro or unity just doesn't work on a normal Pc and aren't well received by users!
  • faizoff - Friday, March 9, 2012 - link

    You might want to try out the Consumer preview since you've tried the metro apps on the Dev preview. They mention in the article about closing out the apps. They aren't that difficult to close now. Though shutting down and restarting the computer is still a chore.
  • PopinFRESH007 - Sunday, April 15, 2012 - link

    Hovering the mouse over the left most 80 pixels to pop out the multi-tasking tray and then click-holding the app and dragging it down is a whole lot more work than clicking a little red x.
  • faizoff - Friday, March 9, 2012 - link

    I'll have to read this thoroughly when I get home. I find myself really liking Metro even on a PC. I don't see myself getting it when it comes out for the PC though. Only way I'm getting it is when Win 8 tablets come out.

    Skimming through the comments, I had mentioned about the restart and shutting down annoyance. I found a shortcut that allows to place a tile on the metro screen thereby clicking only once to shutdown or restart the computer.

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