I think it's a Windows 10 issue. I have an m-audio firewire 1814. over the last 10 days or so i have found myself with no audio device. I've disabled the hdaudio device. Seems that win10 deletes the 1814 driver, tries to force the nvidia hdaudio driver, but can't enable it. 

Count me in.  I had a Quad-capture, but finally uninstalled it because of constant crashes (easily 2-3 a day).  Now I'm using an old Line 6 UX1 I had.  I don't particularly like it, but I haven't had a single problem since installing it.  Sort of an "insult to injury" thing, but didn't Roland own Cakewalk for a while?  If so, you'd figure that Roland drivers would be rock solid with SONAR.

I would just be happy at this point if I could get the Windows 10 version Studio-Capture install package to keep backed up on my hard drive for those times when internet is not available! The only thing I have found is the driver itself but no installation on the Windows archive site.
The Roland company obviously sold the driver package to Windows because the driver is only available thru Windows Update!!!! I don't foresee any attempt to upgrade these drivers in the near future!! HOLY CRAP!!!

I have a quad capture on my laptop w/win 10 and haven't seen any problems. The laptop doesn't get used that much tho, I have a daw that I normally use.

These things tend to be system related. 
Look at the replies and there's mixed success using the latest Windows , the latest Sonar and the latest driver from Roland. 
So myself I would follow best practices for setting up a computer for a DAW and especially try disabling all other audio drivers and devices. On board and HDMI.  
I don't have any on board audio and have no problem with using Media Player or watching a video. It all plays though my Scarlett or Tascam just fine. 
There have been a lot of threads with Roland interfaces issues. 
But there'a also a bunch about all other interfaces too. 
For $99 you can buy a Focusrite, Steinberg or Presonus interface and see if the issue goes away. 
For $150 you can buy a TAscam us2x2.. 
Those brands have "known" good ASIO drivers. 
If it doesn't send them back, If it does send them back and order your dream interface. 

My problem is I need the 32 ins and 20 outs in realtime that 2 Studio-Captures synched together allows me. I do a lot of location recording work and a 2,4,8, or even just 16 ins is not enough!!!
Thankfully, I have never had the system tank out on a job but it is always a nerve-wracking experience enough without a crash in the back of my mind.
That's why I keep asking for the installer package. I can take a few minutes of downtime to re-install the drivers myself, but having to deal with using Windows Update online in the middle of a sizeable project would be a nightmare.

I've had this problem recently with my Quad Capture, but it's only happened when loading projects with CA-2A in them. Given the other threads I've read about CA-2A causing crashes, I've removed it from the project (when I was able to load it using WDM drivers) and was then re-able to load with ASIO enabled.
 
Only started happening recently, and I've not updated Sonar since April (running 2016.03 at the moment).

Admit straight-away that I'm not too audio-driver savvy, but I have the Cakewalk/Roland usb25-ex and since this Waspi update-thingy, which I've enabled on SONAR, all my SONAR stuff, Windows Media Player etc and other audio can play together all day long, which before using ASIO they couldn't.
Happy chappy here.

I have worked about 5 hours straight with no drop outs, no crashes.  Things are very stable again.  ( I disabled Octacapture in Windows Sound)
 
I used CA-2A and inserted rapture session with no issues.  (did not have any before though)
 
I am pretty sure that at least for some of us, Octacapture drivers do not play well anymore with Windows sound.  I am also pretty sure that the big Win 10 annivesary update changed something and the OctaCapture drivers were affected for some of us on some systems.
 
At some point I will re-enable OctaCapture in Windows sound and see if issues return, but not for a while, i am really sick of restarting by PC.
 
Oh well...guess I am back to 8 years ago when my Firepod did the same thing....DAW only no Windows Sound.
 
JR

A Quad Capture here, which is stable on Win 10 with SPlat.
 
Until recently it was my only interface, running Win 7 with SPlat in the 'studio' and on this mobile Win 10 laptop for nearly a year.
 
I have not updated SPlat on this Win 10 laptop since installing it right after T-Day.