I’m using laptop for more than 5 years so I know what you need to now before buying a laptop and what to do for maintenance of laptop.
Always buy a laptop which has minimum 8gb of RAM.
Good processor always make a laptop good or bad. So keep in mind, always buy a laptop with i3 with latest generation.
Graphic card is not always necessary but if you want to play games then you need to install 2gb of graphic card.
Battery is not main thing but need to consider to add for a good laptop. So, good laptop should have good battery life.
These four things should consider by person who wants to buy a good laptop.
To maintain laptop always run antivirus everyday before using or after using the laptop.
Don’t run laptop on high performance as it consumes so much battery.
Always keep these things in mind before buying any laptop.