Onedrive issues on Windows 11

Hello there,

Here is a solution to solve the very slow file explorer on Windows 11. The symptoms for me is a very long elapse time when, in the FileExplorer, I am going thru folders list (down key arrow) waiting 3 seconds the cursor to move... it is also the same elapse time to enter a folder.

I have applied many suggestions, none of them really fix the issue. Except F11 which improve a bit, but it work only for one Window at a time (not really usable). I found disconnecting all tenants for OneDrive and cleaning the OneDrive cache was bringing improvments (onedrive /reset). But still big big issue. Once all tenants reconnected for OneDrive Synchronisation the issue came back.

In fact, I do use a lot Teams/Sharepoint/OneDrive synchronisation (+5 tenants, +20 Teams projects, +50 folders with thousands of files). My guess was that the volume of OneDrive was an issue for Windows 11, which was confirmed by the fact the system is working better when tenats are disconnected.

I found that going thru a folder list, the File Explorer is apparently requesting status information to OneDrive process for each folder being listed. My guess was that OneDrive is king of waiting for timeout on folders not fully working for synchronisation.

So I searched for synchronised folders description in the registry, and I found old folders no longer being used. So I removed the old entries : 

In Ordinateur\HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Desktop\NameSpace I cleanup old Sharepoint entries.

Then in Ordinateur\HKEY_CURRENT_USER\Software\SyncEngines\Providers\OneDrive I checked the LastModifiedTime and removed all old entries (easy to identify as I disconnected all tenants and reconnected before).

And BINGO ! It is now working perfeclty fine !

Have fun