My 2 cents... I think that giving all users access to all the shortcuts in Fences at an earlier stage in the boot process, would result in a myriad of errors/crashes because Windows has not yet loaded all services
Although theoretically this could be the case, this definitely should not happen. I am using the argument Neil used in the topic i mentioned before. Windows has a delay of 10 seconds before its starts all the programs. Atom computers with a non ssd disk might take much longer then 10 seconds for things to finish. Basically this means no service is guaranteed to be done after 10 seconds. Afaik, slow computers are not inherently less stable then fast ones. So it should be absolutely safe to either omit the 10 seconds or lower it or just let fences start immediately without the 10 seconds.
Arguably its very nice that all the update-checkers and stuff like that only start after a delay since its much better to be able to use the computer immediately then to know immediately if there is a new version of program xyz. I think this is the reason why the 10 seconds is there in the first place. Its not needed, but its nice.
NB i didnt look at any microsoft documentation to verify. Just using plain logic and Neil's argument.