diff --git a/coin/provisioning/common/windows/android.ps1 b/coin/provisioning/common/windows/android.ps1
index 5b2039d1..4e9dde67 100644
--- a/coin/provisioning/common/windows/android.ps1
+++ b/coin/provisioning/common/windows/android.ps1
@@ -57,7 +57,6 @@ $ndkFolderDefault = Install $ndkCachedUrlDefault $ndkZip $ndkChecksumDefault $nd
 Set-EnvironmentVariable "ANDROID_NDK_ROOT_DEFAULT" $ndkFolderDefault
 # To be used by vcpkg
 Set-EnvironmentVariable "ANDROID_NDK_HOME" $ndkFolderDefault
-$env:ANDROID_NDK_HOME = "$ndkFolderDefault"
 
 if ($ndkVersionDefault -eq $ndkVersionLatest) {
     Write-Host "Android Latest version is the same than Default. NDK installation done."
diff --git a/coin/provisioning/common/windows/helpers.ps1 b/coin/provisioning/common/windows/helpers.ps1
index ad01c499..9e4122ea 100644
--- a/coin/provisioning/common/windows/helpers.ps1
+++ b/coin/provisioning/common/windows/helpers.ps1
@@ -189,6 +189,8 @@ function Set-EnvironmentVariable
     Write-Host "Setting environment variable `"$($Key)`" to `"$($Value)`""
 
     [Environment]::SetEnvironmentVariable($Key, $Value, [EnvironmentVariableTarget]::Machine)
+    # Make the envvar immediately available to subsequent scripts run in the same session.
+    [Environment]::SetEnvironmentVariable($Key, $Value, [EnvironmentVariableTarget]::Process)
 }
 
 function Is64BitWinHost
diff --git a/coin/provisioning/common/windows/install-vcpkg.ps1 b/coin/provisioning/common/windows/install-vcpkg.ps1
index 1dc532c7..9b40afe0 100644
--- a/coin/provisioning/common/windows/install-vcpkg.ps1
+++ b/coin/provisioning/common/windows/install-vcpkg.ps1
@@ -75,11 +75,7 @@ Set-Content -Value "" -Path "$vcpkgRoot\vcpkg.disable-metrics" -Force
 Set-Location -Path "$vcpkgRoot"
 cmd.exe /c "$vcpkgRoot\bootstrap-vcpkg.bat"
 
-# Setting VCPKG_ROOT using Set-EnvironmentVariable makes the variable only
-# available during build time. In order to make it available during the
-# provisioning, we need to directly set it via $env:VCPKG_ROOT as well.
 Set-EnvironmentVariable "VCPKG_ROOT" "$vcpkgRoot"
-$env:VCPKG_ROOT = "$vcpkgRoot"
 
 # Set a source for vcpkg Binary and Asset Cache
 # The `coin/provisioning/common/windows/mount-vcpkg-cache-drive.ps1` script is