New
#11
Do you mean this here?
Restore Classic Search in File Explorer in Windows 10 version 1909
That mach command stopped working after a CU. I dont know which one, but I know if I clean install 21H2 it works, but if I install the latest CU, it no longer works and the new search box is forced. Mach is used to enable previous functionality which Microsoft might keep in place to allow them to rollback broken updates, but there is no assurance that old code will stay functional and it looks like to me, the old search box code is now stripped out of windows, so you have raised my curiosity when you say you are using classic search.
In regards to the update I dont like the new search box, however one of the annoyances was there was brief lag when clicking the search box, and now that lag is gone at least, so whatever they changed in the most recent update has at least made it not quite as bad as before.
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You are right, not only is the lag now gone, it is indeed the old behaviour I think, interesting Microsoft u-turned.
I wonder how long ago it was they switched it back.