问题：
在安装Web 3 时，提示 ：
"Your computer is scheduled to restart. Restart your computer and run Setup to continue installing this Expression program."
解决方案：
We check three registry keys to determine if a reboot is required. It’s been known to happen that after an install and a reboot, these keys are not cleared correctly. It’s also possible that due to Windows/Microsoft Update, multiple reboots actually are required. After several reboots, the user should clear these keys and try again.
We will call for a reboot if any of the following three things are true:
If this key is non-empty: （如果有此Key,删除即可）
HKLM: SYSTEM\CurrentControlSet\Control\Session Manager: PendingFileRenameOperations
If this key exists: （如果有此Key,删除即可）
HKLM: SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\Auto Update\RebootRequired
If this has anything but “0” (zero): （如果有此Key,改值为 0）
HKLM: SOFTWARE\Microsoft\Updates\UpdateExeVolatile: Flags
