This is rather frustrating.
Windows.old has now gone.
Tried uninstalling once so now there’s nothing to uninstall!
Tried re-installing (using ExpressCacheSetup,exe) but this fails to an error message “Please uninstall and re-run setup”
Now nothing to uninstall.
Then set-up says " System has not rebooted after uninstalling expressCache. reboot the system and start ExpressCache installation"
I’m going round in circles here.
Can anyone help before I throw the thing away!