I understand that you are having difficulties removing a greyed-out tile from your Windows timeline, despite following the suggested solution of deleting the files in the "C:\Users\AppData\Local\ConnectedDevicesPlatform" directory. I apologize for any frustrations this may have caused. While deleting the files in the mentioned directory should typically remove the associated tiles from the timeline, it seems that in your case, the tiles reappeared after you deleted the files. In addition to the directory you mentioned, there are a few other locations where data related to Windows timeline may be stored. You can try deleting the files in these directories as well:
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