Windows 10 and “no longer located in”

After numerous updates to Windows 10 on the fast track, I realised there were a half-dozen folders that seemed to be rubbish yet I could not delete.

'C:Windows.OldUserslukebAppDataLocalPackagesMicrosoft.Windows.Cortana_cw5n1h2txyewyLocalState..'

I ended up renaming them as DELETEME95-99 and thought a reboot or maybe a CHKDSK/F would see them gone.

But no. Still saying they don't exist but they are cannot be deleted using Explorer.  I assume it was the strange folder with trailing dots on "LocalState.." causing this.

Launched CMD as Administrator and did the following to rid me of the 'LocalState..' folder.

rd /s "\?C:DELETEME99UserslukebAppDataLocalPackagesMicrosoft.Windows.Cortana_cw5n1h2txyewy"

yes, the folders will now delete.