Are my audio drivers being re-installed at every boot?  

I can't find a solution on Google because there are too many threads relating to this general error but not my exact problem.
Can't think of any new installs that would affect my computer in the last week since this started.

On every boot up, W7x64 displays "Device driver was not successfully installed".

When I click this popup it displays a list of all my audio equipment with red 'x's (M-audio usb MIDI interface, Presonus usb audio interface, Creative internal sound card [not usb], and a software internal MIDI interface).

I close this list of errors popup, and all signs of trouble are gone! All devices are working! sfc /scannow passes, and Device Manager show no errors.

With the computer still on, if I turn off the power to the Presonus audio box, and then power it up again I get the exact same symptoms (except for the Presonus box only, of course).

A system restore to before the problem started didn't fix it, so I'm guessing it's not a registry problem..

Only Audio Drivers are in the "failed" list.
They have different connections:
2 are usb
one is internal software only and has no external connections
one is internal (pci buss sound card)

Please help.

Thanks firebird,
I have X3 also and this computer has been working fine with sonar 8.5, X2, and also x3, So I don't think it's sonar. This computer is almost 2 years old and has been running fine until 2 weeks ago. Actually it is still running fine RIGHT NOW! lol
I'm doing a recording project right now with X3.
I don't want to just ignore this as it's way past time for me to do my HD cloning for backup and I don't want to clone the HD if something is wrong with the system.

I did just now update the Intel chipset drivers but I still have the problem.
Thanks for the idea, though.

I did try that earlier and every combination if usb I could think of. e.g. if I unplug both usb audio devices I still get the failed install alert on my sound card and software midi port.

Isn't there a way to log the bootup procedure into a text file?. I'll try googling that tonight.

Again, the biggest mystery for me is that everything actually ends up working as intended. It's the 'failed install' alert that worries me.

I keep a very clean bootup list. There's only a few necessities in there. (no nVidia, Creative, Adobe, etc.)

And definitely nothing new or changed. Seems like if it were an actual driver problem it would end up being crippled as the last result. I was very surprised that a system restore didn't fix this.

Again I'll find out how to log a boot record tonight. Thanks, fireberd!