Photoshop is turning all my PDF files in to photoshop files . I all so cant down load updatess it gets hafe way through the up date , the its states contact customer sevice . I need the PDf files to stay as PDF files for printing
It sounds like you're trying to say that something on your system associated PDF files with Photoshop instead of Acrobat. Installing a plugin wouldn't do that, and installing Photoshop wouldn't do that.
Again, it is not possible for PDF files to suddenly change to PSD/PSB files (which is literally what you're saying).
The only way for PDF files to turn into something else would be for your to change the file extension on the files (a mistake), or for you to open the PDF and save them again as another file format.
Just open your PDF files in Acrobat -- the association doesn't matter except for double clicking. Or right click on them and set them to open in Acrobat.