I need help with a reply I got

It depends on which console you use.

For Xbox 360 goto settings - system - storage - highlight storage device, and press y, then select clear cache

For Xbox One power cycle the console by pressing the power button down on the console until it turns off, then wait 30 seconds and turn back on.

If your experience any following issues: Unable to sign-in to Xbox Live, Your games are not launching, Kinect is not performing like it should be ( Kinect won't register your voice ) , Etc. Performing a hard rest on your console, also known as a power cycle
or full reboot, cold restart can help fix this any of this issues.

To perform a hard restart, hold the power button on your Xbox console for 10 seconds while your console is on. This will power down Your console. When the 10 seconds period is over press the power button to power up you console again, And the green start
up screen will display.

Your cache would be cleared, Some of your setting would be reverted, But your data are preserved, and all your issues should be resolved.

What they tend to mean is a power cycle. Press and hold the console power button till fully off, wait 30 seconds and power back up.

Try go in Settings > System > Kinect & Devices > Storage and see if you find the Option Clean the Temporary Internet Files or In Privacity or Try Open your Edge from the XBox and go In 3 points and Configurations > Privacity

^ Above user is right. Everyone has the right to keep their Gamertag even if they are not using XBL or taking a break from it (as long as they don't break rules).

Do you think it would be fair if you took a long break from using your GT and suddenly came back to find another person took it and you lost your old account just because you didn't use it for a while? Would you be happy about that?