I couldn't figure out what's going with our win2k8 server, everything working except its slow to respond and would take much longer to open any window or options than normal. All the status including CPU, memory, network were normal in task manager and there is no activity running on this machine.
I ran resource manager, it was stable there with an available memory of more than 75 percent, the processor utilising around 7 % and disk I/0 is less than normal?