I am running the pre upgrade checklist for WSS 3.0, and I get the following Potential Upgrade Blocking Issues: enter image description here

I have run the Sharepoint Cleanup Tool it found some invalid things and we removed those.

I also logged onto the sharepoint site and removed the webparts that reference these files, but I am still getting the error.

How can I remove these webparts or file references entirely as I am sure we do not use them.

  • did you uninstall the features or just delete the files on the server?
    – Waqas Sarwar MVP
    Jun 27, 2014 at 18:05
  • There was no un-install option under the webpart Edit Item page, only Delete. So they were deleted. as for a Windows level uninstall, I am unsure how they go there in the first place, we really have not added any custom anything to WSS, just install and go.
    – sec_goat
    Jun 27, 2014 at 18:11
  • you can go on central admin and from system settings and manager farm solutions...see if anything listed their.
    – Waqas Sarwar MVP
    Jun 27, 2014 at 18:12

1 Answer 1


According to the KB article.

If missing files are listed, you can do one of the following:

  1. Install the missing files on the server before you perform an in-place upgrade.
  2. Build a new farm with the listed files installed.
  3. Remove the content that references the missing files.
  • I read that, the problem is: I don't know how or where they were installed, so I cannot re-install. I do not want, nor do i have the resources to build a new farm, and I have no idea how to find references to the content other than the places I mentioned in my original post.
    – sec_goat
    Jun 27, 2014 at 18:15
  • from central admin, manage farm solutions if anything listed their
    – Waqas Sarwar MVP
    Jun 27, 2014 at 18:19
  • I was just trying to get there, I am having trouble finding manage farm solutions, I have Share Point site management. . I am googling now to see if I can find it!
    – sec_goat
    Jun 27, 2014 at 18:23
  • found Manage Farm Features, nothing there
    – sec_goat
    Jun 27, 2014 at 18:24
  • try this link and specially step 8.blog.uvm.edu/jgm/2010/08/25/…
    – Waqas Sarwar MVP
    Jun 27, 2014 at 18:30

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