Talk about "PowerShell 7 from the Microsoft Store" inside of KnownIssues.md (#4758)

* Talk about "PowerShell 7 from the Microsoft Store" inside of KnownIssues.md

* Update Invoke-WinUtilInstallPSProfile.ps1

* Update KnownIssues.md

* Update KnownIssues.md

* Update KnownIssues.md

docs/content/KnownIssues.md

@@ -30,3 +30,18 @@ In these cases, the power plan may fail to apply, This is expected behavior on u
 Revert start menu tweak stops working starting with **Windows 11 update KB5089573** (released in May 2026).
 
 In this update, Microsoft completely removed the old Start Menu code from Windows, so we aren't able to bring it back.
+
+### Issues with PowerShell 7 or Class not registered Error
+Installing PowerShell 7 from the Microsoft Store (MSIX package) is known to cause issues with DISM cmdlets such as `Get-WindowsOptionalFeature` and `Enable-WindowsOptionalFeature`, resulting in a `Class not registered` COM error.
+
+This might also make it so running the "pre-installed app removal" will take a indefinite amount of time
+
+Instead, install PowerShell 7 using one of the following methods:
+
+**winget (recommended):**
+```powershell
+winget install --id Microsoft.PowerShell --source winget --installer-type wix
+```
+**Direct MSI from GitHub Releases:** Download the `.msi` installer from the [PowerShell GitHub Releases](https://github.com/PowerShell/PowerShell/releases) page.
+
+For more details see https://github.com/PowerShell/PowerShell/issues/13866

functions/private/Invoke-WinUtilInstallPSProfile.ps1

@@ -8,7 +8,7 @@ function Invoke-WinUtilInstallPSProfile {
     if (-not (Get-Command pwsh)) {
         Write-Host "PowerShell 7 not found. Installing..."
         Install-WinUtilWinget
-        winget install Microsoft.PowerShell --source winget --silent
+        winget install Microsoft.PowerShell --source winget --installer-type wix --silent
     }
 
     wt new-tab pwsh -NoExit -Command "irm https://github.com/ChrisTitusTech/powershell-profile/raw/main/setup.ps1 | iex"