urgent assistance needed , i have to upgrade Magento 2.2.5 to 2.4.2

[5e48be49ecff7]

How I can upgrade the version from 2.2.5 to 2.4.2 without any change in the existing data (Products, orders etc ). And has I need to change the theme or php version of the server before any action. 
I want to do this by using a localhost server (wamp or xampp)

Thanks in advanc 

[Gaurav_Jain02]

Hello @5e48be49ecff7 

Moving from 2.2 to 2.4 can be a little bit challenging sometimes. 

Before moving ahead, I would suggest keeping the M2.4 compatible server ready because of M2.4 needs Elastic search compulsory, php 7.4, and MySQL 8.0

Read more here https://devdocs.magento.com/guides/v2.4/install-gde/system-requirements.html

Look for all the third-party extensions' latest compatible versions.

We strongly suggest upgrading the Magento version with the composer.

You can try below blog, if that doesn't help let me know.

https://magecomp.com/blog/upgrade-magento-version-from-2-3-to-2-4/