upgrade/reinstall

[Gregor3000new]

I have a really old version of joomla for a static webpage. the "upgrade" procedure is rather complicated and given the fact that there are only a few websites it might be a waste of time. so what i was thinking is to simply reinstall joomla and copy paste the text from the few websites there are.

problem is i have the main site in /public_html with main domain.com

but i also have a webshop in public_html/shop wioth domain.com/shop

and another website in public_html/wp with different domain_2.com

what i am worried is that if i reinstalled over the old joomla i might overwrite certain setting in subdirectory or mess up my other install. is that possible? what would be the safest way to do this?

the joomla data is only a couple 4 or 5 webpages with some text and a pic or two. nothing big that i can't easilly remake with some copy paste. the two pics are backed up anyway.

[sovainfo]

Advice to install in an empty folder and when satisfied everything is as desired swap the folders and change configuration.php.