Hi @Tom-Elliott
After moving from RC-2 to RC-4 the plugin, the WinPE image and the step that closes the task at the end of the WinPE flow all kept working. Only the Apache part needed a change.

With RC-4 the whole vhost sits inside FOG’s managed block, so my earlier Alias plus rewrite exception was gone and /fog/winpe_3400/wimboot started answering 308 (FOG’s rewrite rule sends it to the API). Instead of putting the exception back, I now serve the files from /winpe_3400/ (no /fog/ prefix), with an Alias and a <Directory> in a separate conf-available file enabled with a2enconf. FOG’s rewrite rule only matches /fog/, so it never sees these requests, and nothing in 001-fog.conf should need restoring after an update. The only change in the plugin is its WIMBOOT_HTTP_PATH constant.

Checked after the change: the Latitude fetches wimboot, BCD, boot.sdi and boot.wim from the new path (all 200), WinPE starts, and a full deploy on the Latitude 3400 and one on an HP with the normal FOS/Partclone flow both completed and closed their tasks.

@servicedesk-pianezza Confirmed, and your fix is the right one. Thanks for the clear report.

The check was using the 24-character Base24 alphabet. That set is what you use to decode an older key into its binary form, and N is not one of its digits. It is not the set of characters a key is printed with. Windows 8 and later put N in the key itself, so any key carrying one was refused at entry.

There was a second half of the same bug. The browser keeps its own copy of that character list, for the masked display of a saved key. So even where a key with an N got stored, the page showed it as five groups of dots instead of keeping the first and last group. Both copies now say the same thing, and a test compares them character for character so they cannot drift apart again.

The test also runs Microsoft’s published KMS client keys through the validator, and checks that the characters Windows leaves out (A E I O U L S Z 0 1) are still rejected and the length is still exactly 25.

It is in PR #1773 against working-1.6: https://github.com/FOGProject/fogproject/pull/1773

It will be in the next beta build. If you would rather not wait, the one-character edit you already made is exactly what landed.