LogonUI.exe-Application Erro

Hello!

This computer runs Windows 10. It was booting fine until a couple days ago. Now when I try to boot it goes from BIOS, to the Splash Screen, and then the circling White on Black screen, then a circling small blue sand dollar, and then eventually to the error message 

"LogonUI.exe-Application Error. The instruction at 0x00007FFC83D2A263 referenced memory at 0x0000034600000445. The memory could not be read."

This whole process takes about 30 minutes. 

I have tried reseating memory but that did not help. I have tried RAM from another identical computer that is booting and that did not work. Thanks for your help!

Try a bootable hard drive diagnostic:  http://www.carrona.org/hddiag.html

In the event that the system came with W8 or 10, the system will have a UEFI and not a BIOS

As such, you'll have to disable SecureBoot and enable Legacy/CSM mode in order to boot from a bootable hard drive disk

Thank you usasma for the response. I will try it.

I forgot to mention that there is a RAID1 setup on the machine. Will this test work on a RAID setup?

In general, you can run the Long/extended test without worrying about RAID.
The more advanced tests may not support the RAID controller - so they may not work.

If it does give problems, you can simply attach the drive to another system and run the Windows version of Seatools there.

Then, when done, put it back in the original machine.

These are 2 WD Hard Drives. I ran Seatools Diag long test on both and they both passed. 

As the hard drives passed, then the problem is either with your RAID, or with the boot stuff in the OS.

I'm not familiar with RAID, and I don't often work on boot stuff in the OS.

For those subjects I'd suggest posting over in the Windows 10 forums.