launchboxhelpp Posted October 8, 2021 Share Posted October 8, 2021 I'm on a microsoft surface pro with windows 10. Before Launchbox always opened perfect, never any problems. Now it always says it needs a .net core. I've downloaded the correct one (x64) many times but nothing has changed. Please someone help me with this issue Quote Link to comment Share on other sites More sharing options...
faeran Posted October 8, 2021 Share Posted October 8, 2021 Give this one a try: https://dotnet.microsoft.com/download/dotnet/3.1 Make sure to download and install the .NET Desktop Runtime 3.1.19 (x64 version) - (the middle of the right column) Also, make sure that your Windows is up-to-date. 1 Quote Link to comment Share on other sites More sharing options...
C-Beats Posted October 8, 2021 Share Posted October 8, 2021 After installing that make sure to restart your computer. If it still doesn't work, open command prompt as administrator and type in "sfc /scannow" (without the quotes) and let that run and then restart your computer and try one more time. We've seen some of the .NET runtime files get corrupted and that process should identify and correct those issues for you. Quote Link to comment Share on other sites More sharing options...
launchboxhelpp Posted October 9, 2021 Author Share Posted October 9, 2021 thank you both for your replies. I'm on a microsoft surface pro 5/2017 with windows 10 fully updated. I tried everything you both told me many times and there has been no change. Please help me out with this problem. Launchbox worked without a problem just a couple of months ago. If I can't recover launchbox do you think you can help me find another launcher for my retroarch game? There's a game that took me forever to emulate and that I've come to love. I'm sorry for the inconvenience. Quote Link to comment Share on other sites More sharing options...
MadCoder Posted October 11, 2022 Share Posted October 11, 2022 (edited) HOW TO SOLVE This assumes you've installed the latest .NET core runtimes or fresh Launchbox install or update. First, ensure the .net core path is properly listed within your systems path variables. To add or check system paths: Press Windows Key + R and enter "SystemPropertiesAdvanced.exe" next select Environment Variables. There you should see the path listed. Any OS version prior to 8.1 should have an entry like so "C:\Program Files\dotnet" otherwise x32 systems will be listed as "C:\Program Files (x86)\dotnet" If you've installed the latest version .Net Core (6.0.9 as of this posting) you will see subset of versioning folders located within the "C:\Program Files\dotnet\host\fxr" folder. More than likely there will be no files within the 6.0.9 folder. Copy the "Hostfx.dll" file from the 6.0.6 folder and place it in the empty 6.0.9 folder and that will resolve the consistent "Install .net core ..." messagebox allowing Launchbox to properly load. Launch Launchbox and enjoy Edited October 11, 2022 by MadCoder Quote Link to comment Share on other sites More sharing options...
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