Slowness reasons what is your environment ? - Changes . check Last Application Change, Network changes, OS changes patches, updates - Roaming profiles , local , hybrid ? -> check the profile server - Terminal server event ID - Fileserver -where is the fileserver with the profiles located. ((so it's profile size isn't very big) - Process CPU utilization -Teaming and bonding are specific name for Ethernet network, -load balancing - DC/ DNS (domain controller) - SAN ( disk responsive time) ,- User connections (Disk Queue Length ,Disk Transfer Time) - Antivirus check Logs malware ...