Windows 8 and 8.1 Forums

.Net Framework 3.5 uninstall/reinstall for 8.1 Pro

  1. #1

    Posts : 18
    8.1, 7, XP

    .Net Framework 3.5 uninstall/reinstall for 8.1 Pro


    I have an application that uses .Net 3.5 that has been failing. The vendor has spent the last several weeks attempting to determine the cause. According to their tech support and development people this problem is only occurring on my PC. I've been using the software for years and have a lot of confidence in their support people.

    Their belief is that there is something "contaminated" (in the OS or components) on my PC. I have the same application on my W10 system (previously W7) and the problem does not exist. I also have a later version of the application (which is beta) on my 8.1 that uses .Net 4.5 and the problem does not occur there either. That said, it seems that a possible candidate for where the problem lies is someplace within .Net 3.5. Both the vendor and I at different times have gone through the process of turning off the .Net framework 3.5 and then back on.

    I do not believe this is the same as being able to do a repair or better still an uninstall and reinstall which I was able to do in W7. There is no entry in the Program and Features section of the Control Panel that would allow me to remove the .Net 3.5 framework and then install a fresh copy. The only control is the Ability to "Turn Windows features on or off" (see screen shots), a section (a link to another place) in the Program and Features area. I would like to be able to find out if it is feasible to download and install a fresh copy of .Net Framework 3.5 (or maybe all of it) but also there doesn't seem to be a way to remove the .Net components.

    I would appreciate any guidance or suggestions?

    Thank you


    More info missing from the initial post

    1. The application has a log and trace file and there are no errors in it. There are also no related errors in the Windows Event files. The application is written in C#.

    2. When the application first started failing the condition could be easily reproduce on my PC and reinstalling the vendors software "fixed" the problem. However, after some time frame the problem would return. and the process would start over. Now even reinstalling the application and/or turning the .Net framework off and then on does not "fix" the problem. I can recreate it right after a clean install of the application.

    3. This PC is used for special purposes, is only several months old, and has very little software installed on it. No other applications fail like this. I have one other application installed that uses .Net 3.5 which doesn't fail and in written in C++. Obviously there may be other applications that are install that use .Net that I am unaware which are most there for support or utility uses (Teamview, browser, etc.).
    Attached Thumbnails Attached Thumbnails FeaturesOnOff.png   ProgramsAndFeatures.png  
    Last edited by Cheech; 01 Sep 2016 at 21:24. Reason: Enhance title

      My System SpecsSystem Spec

.Net Framework 3.5 uninstall/reinstall for 8.1 Pro
Related Threads
After CMD line uninstall and reinstall from web download, WLM2012 will not open saying the message store is in use by another program. Solution?
How to Uninstall/Reinstall .Net Framework? in Performance & Maintenance
Hi all, I want to uninstall and then reinstall all Microsoft .Net Framework software. However when I go to Control Panel/Programs and Features I don't see any .Net Framework components listed. Thanks for any tips.
I had downloaded spotlite, and it was not working properly so I decided to uninstall and reinstall the app, but when I went backto the app store, it said that it was installed. I can not find the app in my pc anymore and it says that it is still installed. I don't know how to uninstall/reinstall it?
How do I un install windows 8 and reinstall without losing. I have installed 32bit when I need 64bit. what is the best way to go about this
IE 10 has been working fine until the last week or so. Now when PC sleeps, then wakes, IE 10 becomes unresponsive. I need to kill It with Task Mgr, the reopen and fiddle for a while before it works as it should. I thought maybe I could uninstall then reinstall it. But it doesn't show up on...
So basically, right now i have a windows partition on my macbook and when i upgrade to an ssd I plan on getting rid of the windows partition, for now atleast as I have no use for it anymore. The only thing I'm worried about is I don't have an install disk or anything as my windows 8 copy was a...
.net framework 4.5 uninstall in Software and Apps
I want to remove .net framework 4.5 from my computer and replace it with 4.0. Can anyone please tell how this can be accomplished using Windows 8? Thanks!
Eight Forums Android App Eight Forums IOS App Follow us on Facebook