1)
A common mistake is unplugging a laptop when using it, connecting it
back to the AC only when the charge in the battery is running out. The
thinking behind this move is to prevent overcharging. However, built-in
protection against overcharging means that this move only serves to
dramatically shorten the serviceable life of the batteries, as there is a
finite number of charge-discharge cycles that a rechargeable battery
can handle.
2)
If you hear a loud, buzzing or whining sound emanating from your laptop,
do send it for servicing at your earliest convenience. In a nutshell,
waiting for the newly developed sounds to go away is just asking for
trouble, as the sounds are likely emanating from either the built-in
ventilation fans or failing hard disk drive.
3) 
The keyboard sees the heaviest physical wear and tear on the laptop.
While designed for heavy use, it’s usually not replaceable if damaged
and is a usability nightmare if not properly maintained. One way to
protect against the introduction of foreign objects is to get a keyboard
protector for your laptop. To reduce the wear on the keys and touchpad,
Paul Mah advocates the use of a separate keyboard and mouse when at
your desk.
4) 
Due to how a computer file system works, performance of hard disk drives
will unavoidably decrease over months or years of usage. As such, it is
a good idea to perform a defragmentation of your data from time to
time. The same is not true of solid-state disks (SSD), however, which
work differently. Doing so will shorten their usable lifespan.
5) 
The hard disk head hovers at microscopic distances from the furiously
spinning disk surface. As such, it’s generally a good habit not to
subject laptops with hard disk drives to excessive shock or swinging
around when powered on.
6) 
One way to quickly shorten the life or even kill your laptop would be to
stuff it into your bag when it is still switched on. Damage to hardware
is known to happen when applications or the Windows operating system
itself hang during the shutdown process, leaving the laptop running in
the confines of a bag. Check to make sure your laptop’s really powered
off first.
7) 
One way to quickly shorten the life or even kill your laptop would be to
stuff it into your bag when it is still switched on. Damage to hardware
is known to happen when applications or the Windows operating system
itself hang during the shutdown process, leaving the laptop running in
the confines of a bag. Check to make sure your laptop’s really powered
off first.
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