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Most PCs with touchpad enables Windows 8.1 gesture support. In most cases, it is more of problem/annoying feature than it is worth. To disable charms bar from showing up when swiping the touchpad (Dell laptops), do: Open Dell Touchpad from system tray. Go to Gestures tab Disable/un-check "Right Edge Swipe"

If you have nVIDIA graphics adapter and installed nView Desktop Manager and you also have VirtualBox running in the host machine then Alt+Tab functionality in the guest will affected by nView if it is enabled. This was observed on: OS: Windows 8.1 Enterprise 64-bit VirtualBox: 4.3.20

c:\> netsh interface ip set dns VirtualBox Host-Only Network static 192.168.0.1 where: VirtualBox Host-Only Network - is the network interface name

c:\> netsh interface ip set address name="VirtualBox Host-Only Network" source=static addr=192.168.1.1 mask=255.255.255.0 where: VirtualBox Host-Only Network - is the network interface name

c:\> netsh interface ip set address "VirtualBox Host-Only Network" dhcp where: VirtualBox Host-Only Network - is the network interface name

c:\> wmic.exe /interactive:off ComputerSystem Where name="MACHINE-NAME" call JoinDomainOrWorkgroup FJoinOptions=3 Name="DOMAIN-NAME" UserName="DOMAIN-NAME\user01" Password="Password01" Copied this from the internet elsewhere forgot to get the URL to give credits.

PyCharm can sometimes get confused specially if you have multiple interpreters and using virtualenv. To fix "Unresolved reference 'print'" message, do File | Setting... (Ctrl+Alt+S) | Project Interpreter | Show All (drop down) | Show path for the selected interpreter ( ) | Reload List of Paths ( ). Reference(s): http://forum.jetbrains.com/thread/PyCharm-291