We had the same issue on one windows 11 computer running QB Enterprise 2023 with a new install of Adobe Reader. Other computers worked fine. After all the standard help suggestions, QB Tool Hub fixes etc nothing worked and we continued to get the missing component message about pdfs. Then, through windows apps --> additional features installed Microsoft XPS Document Writer which was missing. I thought that would do it but PDFs still didn't work until running appwiz.cpl. The XPS Document Writer was there but unchecked. Once checked the problem was solved. We can now print or send PDFs. Thanks the various suggestions. Hope this helps others.