I miss the *nix command uptime, so easy to use, Windows have a couple of ways to see uptime:
1. On Vista and 2008 the Task Manager has some added info, among them are ‘Uptime’, found in the Performance tab.
2. Open a cmd window, type
or for less information, pipe it to a find command eg.
systeminfo | find "System"
3. Run a net command:
net statistics workstation