How do I install Adobe Acrobat reader without the download manager?
You can download the standalone installations of many Adobe products from their FTP site - ftp://ftp.adobe.com/pub/adobe/.
For Acrobat Reader specifically you can download 10.0.1 for Windows (the current latest) here - ftp://ftp.adobe.com/pub/adobe/reader/win/10.x/10.0.1/en_US/AdbeRdr1001_en_US.exe
I prefer SumatraPDF over the others it is extremely lightweight and free. I did use Foxit in the past but it became to bloated for me.
Update to v11.0.12: ftp://ftp.adobe.com/pub/adobe/reader/win/11.x/11.0.12/misc/
I don't think you can. If you just want to read PDFs you could get something like Foxit Reader.
(I am not affiliated with Foxit)
Current/future full versions can be found below ftp://ftp.adobe.com/pub/adobe/reader/
You'll be able choose your OS from there and then version.
(They make a lot of software and starting at the top of 'ftp.adobe.com/pub/adobe' can get you side-tracked by a link to 'acrobatreader' which has versions up to around v5.0)