Adobe DC and Adobe 2020
Adobe reader DC is already installed and I need to install Adobe 2020 on same pc that needs a reader for another application to work properly. When install I get this error.
Thank you

Adobe reader DC is already installed and I need to install Adobe 2020 on same pc that needs a reader for another application to work properly. When install I get this error.
Thank you

You can. Listen closely. Your first screen shot showed an error indicating that you currently have Adobe Acrobat DC installed. That is the full version that provides editing features. Teh last screen shot you show is Adobe Acrobat Reader which is the free version of the product for only viewing PDF files. It looks like you now do in fact have both versions installed.
When dealing with specific products we need to be sure we know what
product you mean. So far you have referred to
* Adobe Reader DC
* Adobe 2020
* Adobe DC
* Adobe Reader
Not one of these is the name of an actual product, leaving us to guess what you mean (and we each guess differently). Adobe don't help, of course. Adobe Reader USED TO be a thing, but was renamed Acrobat Reader in 2015.
I think your real issue is that you want both the free Reader product and paid-for Acrobat product. Certainly this recently changed, so far as I can see this is now impossible with the new 64-bit versions.
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