How to make Windows 10 File Explorer open “This PC” by default?

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Open Explorer and go to View -> Options -> General

Change Open File Explorer to This PC

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Quickly Show/Hide Hidden Files on Mac OS X

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// Show hidden files
defaults write com.apple.finder AppleShowAllFiles YES

Hold the ‘Option/alt’ key, then right click on the Finder icon in the dock and click Relaunch.

// Hide hidden files
defaults write com.apple.finder AppleShowAllFiles NO

Again, hold the ‘Option/alt’ key, then right click on the Finder icon in the dock and click Relaunch.

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Disable internal laptop display when external display is attached

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Before Lion it was possible to run an external display off a laptop and have the internal display disabled, even if you opened the lid. This can be useful for a myriad of reason including energy saving and better wifi reception. With Lion the internal display will always turn on when the lid is opened, even if there is already an external display connected.

A solution was posted on the Apple support forums by user chenga.8.

To go back to pre-Lion behaviour enter the following command in Terminal:

sudo nvram boot-args="iog=0x0"

To undo this change type type the following command or zap the PRAM (press Cmd+Opt+p+r at power up):

sudo nvram -d boot-args

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