Yes, it is important to use an AC adapter than a battery during installation because you want to make sure you can complete the installation before the battery runs out.
This is to prevent the notebook from running out of power during the installation process.
Because if that battery should run out of power during the installation, you will have to start over from scratch.
you don't want the battery to fail you part way through the process.
If you try to install software while using just battery power, the battery could run low affecting the installation. Use the power supply/charger to make sure that power to the computer is uninterrupted.
what step is critical to ensure that you dont lose important data during installation
Leave driver's door open when replacing the battery. It's when upon installation of battery, you open driver's door and the alarm activates, right? Leave door open during installation. Same goes when you are charging up the battery, leave door open.
It is important to have a battery back up and to check its power level at regular intervals. This way, in the event one's battery fails during a power outage, one is sure to be covered.
Leave the laptop off. Allow the AC power adapter to fully charge the battery for 12 hours. During this time, do not use the laptop or turn it on. This can slow down the charging of the battery.www.laptoptown.com
Apple recommends that:The battery needs to be recalibrated from time to time to keep the onscreen battery time and percent display accurate and to keep the battery operating at maximum efficiency. You should perform this procedure when you first use your computer and then every few months after that.The calibration procedure for Powerbooks and MacBooks (See links below):1. Plug in the power adapter and fully charge your PowerBook's battery until the light ring or LED on the power adapter plug changes to green and the onscreen meter in the menu bar indicates that the battery is fully charged.2. Allow the battery to rest in the fully charged state for at least two hours. You may use your computer during this time as long as the adapter is plugged in.3. Disconnect the power adapter while the computer still on and start running the computer off battery power. You may use your computer during this time. When your battery gets low, the low battery warning dialog appears on the screen.4. At this point, save your work. Continue to use your computer; when the battery gets very low, the computer will automatically go to sleep.5. Turn off the computer or allow it to sleep for five hours or more.6. Connect the power adapter and leave it connected until the battery is fully charged again.
Back up all of your important Data on a hard disk or solid-state memory device.
Windows 7 minimizes user involvement during installation. You only enter information at the very beginning and very end of the installation.
During XP setup or installation, partitions can be created, deleted and selected for installation.