In a situation like this, I always like to rule out the hardware first.
Once that's done, you're down to a config related issue.
Steve, if you have a backup image file prior to the issue happening, you could load that and see if it resolves the issue.
Bridged 32Bit plugins are high on the suspect list.
As was mentioned, I'd try loading one of the problematic projects in "Safe Mode".
That'll let you know which plugin is causing the problem.
Do you have the Lynx Hilo connected via USB2 or USB3?
Your motherboard has an X79 chipset. USB3 had not yet been integrated in the chipset.
Many USB2 audio and MIDI interfaces have compatibility issues when running from 3rd-party USB controllers.
IOW, Connect the Hilo to a USB2 (Intel controller) port. There's no advantage to connecting it to USB3.
If the issue still can't be sussed out...
I'd strip the machine down to minimal hardware and reload the OS (from the original backup image file).
Apply all Windows updates and update the drivers for the motherboard components and video card.
At this point, I'd take the time to create an up-to-date (clean) backup image file using True Image (or similar).
This way you can always (quickly) get back to a completely clean (up-to-date) OS install.
Add one hardware device at a time (audio interface first) making sure all is well before adding the next.
Once all hardware is added, then I'd take the same approach with software and then plugins.
- Hardware
- DAW host software
- Plugins
At this point, I'd avoid installing any 32Bit plugins.
If the installer doesn't give the option to avoid 32Bit dlls, then manually delete them after they're installed.
Pay careful attention when installing the plugins. There's absolutely no standard for install location (with the exception of VST3). If you just accept the default location with each installer, you'll have plugin dlls in numerous locations.
I'm available if you need assistance.