wsearch has to index it
it's because the wsearch service isn't indexing the onedrive folder. i had disabled wsearch on recommendation of samsung magician
Indexing Service/Search
This feature will be disabled because it requires a large number of random writes
by autostarting wsearch skydrive.exe autostart with windows
sc config wsearch start= delayed-auto
and by adding the onedrive folder to it in Indexing Options skydrive.exe autosync and the Progress page in the onedrive works and show f.e. "2 files remaining" or whatever skydrive.exe is doing
rundll32.exe shell32.dll,Control_RunDLL srchadmin.dll
source
the only site i've seen that mention this crucial fact is http://www.rawinfopages.com/tips/2014/09/fix-microsoft-onedrive-sync-problems/. but it fails to point out that it's not enough for wsearch to be running, it also has to index the onedrive folder. another site say skydrive.exe automatically adds the onedrive folder to it when it's started. but i didn't see this happening