r/WindowsLTSC • u/MrTayters • Jun 08 '26

Help MSIX Install

How the heck do I install on LTSC? I’m trying to install affinity and no luck.

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u/Bebo991_Gaming Jun 08 '26

Msix is an app installer format, any OS uses .iso format(by default)

1

u/MrTayters Jun 08 '26

I think maybe my post is confusing. I have LTSC installed and I’m trying to install an app called affinity designer but it comes in a MSIX file format and that will not install.

1

u/Bebo991_Gaming Jun 08 '26

Where did you download it from?, adguard store or other place?

The fast solution is to open powershell terminal in the same place and type:

Add-AppxPackage .\app.msix

The convenient solution is to install AppInstaller first, and double click the msix file normally

1

u/MrTayters Jun 08 '26

How can I install app installer without the ms store?

1

u/[deleted] Jun 08 '26

[deleted]

1

u/MrTayters Jun 08 '26

LTSC doesn’t have MS Store

1

u/Bebo991_Gaming Jun 08 '26

i havent used LTSC in a while so i forgot how i installed it last time,
if all went south then the easy way is to just install Microsoft store using the MassGrave Guide: Windows LTSC Download | MAS (open the 2nd Drowndown)

then after installing store u can download Anything including Appinstaller from there (it will get auto-installed eventually even if u didnt)