Hello Aspirant,

Yes it should be safe as it is an emulator so it does not create any harm to your system if your system has sufficient memory and other requisites, you can download NTA Abhyas app on Nox Player. See from now very few time is left for JEE-Main 2021 so just to give boost to your JEE-Preparation and bind it up I am enlisting down some preparation tips which would help you in your final preparation :-

• Just go through the notes which you have made at the time of studying different concepts. Grab all formulas thoroughly, you can do this by writing it in the notebook or practice some numerical on it.
• Practice previous year's question papers and sample papers as many as you can because it will enhance your self-confidence and time management skill https://engineering.careers360.com/articles/jee-main-sample-papers & https://engineering.careers360.com/articles/jee-main-question-paper
• Don't forget to do exercise and yoga regularly to keep your body mentally and physically fit.
• You can also take JEE-Main Learning package for solving series of mock tests :- https://learn.careers360.com/jee-main-coaching/?icn=JEE_Main_knockout&ici=JEE_Main_article_view_sticky

For more detailed preparation tips for JEE-Main 2021 kindly check out the link given below :-

https://engineering.careers360.com/articles/jee-main-preparation-tips

I hope this information helps you.

Good Luck!!