Unable to download Mavericks from App store
????
I have tried: Reboot, "Reset all warnings for buying and downloading" in Account.
Noting helps.
There are two ways to recover from this condition.
1. Select
Store ▹ View My Account
from the App Store menu bar, then select View hidden purchases. Stop or resume the download.
2. Open LaunchPad and find the icon of the app you're trying to install. There will be a small progress bar below it. Click the "X" to stop the download.