[Solved] ASIO4all brings a halt to my home studio.....

Try a different driver.  ASIO4all screwed up my system too.  ASIO4all attempts to use WDM as ASIO.  It works for some, sometimes.

Thanks...I've tried every available ASIO 4.all driver.....still the X

As AT notes ASIO4all is just a wrapper that in effect disguises WDM drive as an ASIO driver.  I would uninstall the ASIO4all driver and see how it works with just the WDM driver. 
 
I can see from the AKAI web site they do not do an ASIO driver and actually recommend ASIO4all.

jinx
 

Thanks...oh yes..I know that page by heart now....

Maybe. I should uninstall Sonar ..upgrade or something....what a total mess.

I've done some of that but will have another attempt. Back to you soon..I appreciate your help

Try disabling that  audio Device on High Definition audio Buss

This forum is littered with hours wasted by people using ASIO4ALL. It definitely can work, and I admire that they've managed to trick Windows into doing something it was never intended to do, but it's a kludge.
 
Also the system properties in ASIO4ALL can be kind of confusing, make sure they're squared away. Another option is simply to live with WDM or MME...
 
Don't forget that sometimes you have to restart when you make a change in device manager.

ASIO4ALL and "Home Studio" really don't belong in the same thread title. And looking at the documentation and specs on the Akai, I'm not sure it qualifies to be part of a "studio", either. It has no native ASIO driver, and only supports 44.1kHz x 16-bit audio. The documentation itself recommends using ASIO4ALL if latency is too high, which I have never seen another interface manufacturere do. The documentation doesn't even refer to a native driver type at all, but presumably it will be available as a WDM device if you set that mode in SONAR.
 
Based on everything I'm seeing, I would strongly recommend you return the Akai to the seller if possible, and get something, anything, that comes with a native ASIO driver. The Akai seems like something that would have come to market 15 years ago, and be selling on eBay for $40 now. There are many superior interfaces out there for the price, though they won't have analog meters - a questionable value - and may only offer two channels.
 
 

Try to return it. Hopefully the store will understand.

Brutal. Yeah, try to return it and get something that uses true ASIO. I find it surprising any good hardware company would release an interface without ASIO support these days... and AKAI is a decent company as far as I know. I'd kind of like to get some of their MIDI controllers.
 
I've had nothing but success with my Focusrite Scarlett interface and for 140 pounds (sorry I do not have a pound symbol on my keyboard) I think you could get an 8i6. At the very least you can get a 2i6 (which last time I checked goes for about $150 USD or less).
 
ASIO4ALL is an interesting and helpful tool in a pinch. I've used it to get much better results when using onboard soundcards for just goofing around but it is no match for a good interface with proper ASIO drivers.

I agree with Beepster. ASIO4ALL has its place and can work wonders for the performance of onboard sound systems with SONAR when needed in a pinch, traveling with a laptop, etc. But no external audio interface worthy of the name should need it.

Once again thanks...I haven't totally given up just yet.

Also this is happening...

On opening Sonar 7 the audio output in the Akai audio panel does seem open..but....as soon as I load any tracks then the X pops up against audio out.
On the box it does say plug and play ..no drivers required.
When I remove the whole thing ...hard ware and software ...the reinstall I do get messages saying no drivers ...the device is not working properly...but even with the ASIO 4 all def in the system, I cannot force it to recognise the drivers.
I really don't understand the tech side ...but I'm getting the misery pretty good.

Maybe a sample rate mismatch?
 

Latency with MME can be pretty significant, but at least it works. If you get weird distortion or ring modulation type sounds, you'll need to increase the amount of latency.