If you don't see the .job, open a command window by clicking Start>run and typing cmd, hit enter. Type or copy and paste the following line.
attrib -r -h -s C:\WINDOWS\tasks\*.*
Hit enter. Refresh the C:\Windows\tasks folder and you should now see it.
We're going to shut down some un-needed services and disable them from starting up.
Click Start>run and type services.msc then hit enter. In the services window, locate each of the following services, right click and choose properties. If started, click stop and when stopped, set to disabled, then click apply and ok. If not running, set to disabled and apply.
Fast User Switching Compatibility
Super Ad Blocker Service
Wireless Zero Configuration
The Super Ad Blocker Service is missing a filepath so it won't work anyway. We're going to delete that one. Click Start>run and type or paste the following command.
sc delete SABSVC
Reboot and see how things are.
If still slow, did you notice if it slowed after the installation of some software, such as Zone Alarm?
I would also like you to copy the command (including quotes) below and paste it to the run box, then hit enter.
regedit.exe /e c:\policies.txt "HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\WindowsFirewall"
Open C:\policies.txt and post it's contents.