Have noticed over the last few weeks my boot times increasing, so much so that sometimes the system tray icons such as "network" and "battery" etc time out and don't appear. Tried doing a defrag of the boot files via a command prompt defrag C:\ -b What a difference ! Seems to have knocked around 30% of the boot time. Try it.
managed to get to administrator command prompt. on entering the command it gave various options -c,-a,-r,-w,-f,-v,? but none for -b or an option for boot files, sorry for being slow but need more help to crack this one.