When deploying an OSD in SCCM you get this warning:
Warning: Matching Processor Architecture Boot Image (0) not found
To fix the Boot image not found warning, check that you have an x86 AND x64 bit boot image deployed to the PXE distribution point.
❗ Note: SCCM requires that you have both x86 and x64 bit boot images deployed, even if you’re only using one of them!
To do this, on the boot image properties for each image type, ensure that Deploy this boot image from the PXE-enabled distribution point is ticked on the Data Source tab, then update the distribution points.
If SCCM still says that it can’t find a matching processor architecture boot image, check that the boot images have deployed to the distribution points and then make sure that the appropriate DHCP helpers are correct in DHCP and on the switches.
If a matching processor architecture boot image is still not found, then try restarting the Windows Deployment service. You may also wish to check that there are new WIM boot images in the RemoteInstall\SMSImages directory and check that the images are loaded in the SMSPXE log.