Linux Mint under VirtualBox

I wanted to try Linux Mint under VirtualBox but it cannot start. If you try "Start in compatibility mode" you will see the reason:

This kernel requires the following features not present on the CPU: pae

Solution: Under Settings -> System -> Processor is checkbox with name Extended Features (Enable PAE/NX). And it is unchecked by default. Change it to checked state.

Windows XP Update Agent Takes Over The Machine

Microsoft has known issue in Auto Update Agent when wuauclt.exe takes 100% of CPU. It can cause that notification icon will not be shown. Here is solutiuon which works for me. Open Console and enter these commmands one by one:

net stop bits 
net stop wuauserv 
regsvr32 /u wuaueng.dll /s
del /f /s /q %windir%\SoftwareDistribution\*.*
del /f /s /q %windir%\windowsupdate.log
regsvr32 wuaueng.dll /s
net start bits
net start wuauserv
wuauclt.exe /resetauthorization /detectnow

After these steps leave computer running for one hour. Notification icon should appear. ;)