If these steps still do not help, then consider installing a third-party defrag program to perform this task for you, such as Defraggler (/defraggler), or speak with a technician about other options available. Once launched, enter the following command (without quotes) into the first line available and hit enter: “sfc/scannow.” Let the scan run - it can take a while - and then when done reboot the machine and try again. To do this, click on the Cortana icon again, then type “CMD” into the search bar, and then right-click over the “command prompt” listing that appears and select “run as administrator” from the menu that pops up. If that still doesn’t work, then you may need to scan the system with the system file checker and have it correct any issues it finds. This usually is the situation for computers that have not rebooted in a while or remain in sleep mode for prolonged periods. how do increase font size on iphone 5, gc fit 360 garcinia cambogia and cleanse colon 100, s logo for cars, change size partition windows 8. Rebooting clears out session data that builds up over time and may stop the command from starting up.

The data blockage issue is a simple fix - simply reboot the machine and try to launch defrag again.

Defrag windows 8.1