activer mode hibernation mise en veille prolongée windows vista

Pour activer la mise en veille prolongée windows vista/seven

powercfg -h on

Mac OS X recover lost password

To reset your OS X password without an OS X CD you need to enter terminal and create a new admin account:

1. Reboot
2. Hold apple + s down after you hear the chime.
3. When you get text prompt enter in these terminal commands to create a brand new admin account :

• mount -uw /
• rm /var/db/.AppleSetupDone
• shutdown -h now

4. After rebooting you should have a brand new admin account. When you login as the new admin you can simply delete the old one and you’re good to go again !

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Step 1: Start up from a Mac OS X Install CD.

MacOSX-DVD.pngThis hardest part of this technique may be laying your hands on a Mac OS X Install CD when you need one. Use a version that is close the the version of Mac OS X you have installed.

Hold the C key as the computer starts to boot from the CD.

When the installer starts, choose your language, and you'll proceed to the welcome dialog.

Step 2: Choose Reset Password from the Utilities menu.


Tip: In previous versions of Mac OS X (10.2 and 10.3), you can find the Resent Password option under the Installer menu instead.

Step 3: Select your Mac OS X hard disk volume.


Select the user name of your original administrator account.