I’ve tried Alt f10 and not anything occurs. Would there be something in Shift f10 command box to assist?Thank youDo you carry out the factory repair from Windows itself?I am not too sure but perhaps which you could try again for programming help few more times on Alt+F10 to name the eRecovery system. I doubt the Shift+F10 may help anything since it looks to me it’s programming help corrupted Windows installing. Probably try calling the seller or Acer service centre for help?Will unzipping and operating the exe files in that one install the eRecovery Management?and will the eRecovery option re appear in the Acer option when I hit alt F10 on boot up?I would want to think that the things that you have deleted are really from Windows itself, not on the booting level, so I would assume that the eRecovery system via Alt+F10 will still be usable. If you did not delete the partition that stores the healing image, likelihood is that you could restore your laptop to factory settings. You can definitely check if Alt+F10 calls the recuperation system with out restoring the system – that you could always quit from the restoration system if you choose not to restore your computing device.