diff --git a/.github/workflows/untrustedPR.yml b/.github/workflows/untrustedPR.yml
index 5bc29f9a7a2e72..0bd75586aed713 100644
--- a/.github/workflows/untrustedPR.yml
+++ b/.github/workflows/untrustedPR.yml
@@ -37,7 +37,7 @@ jobs:
         run: |
           git config user.email github-actions
           git config user.name github-actions@github.com
-
+          unset VCPKG_ROOT
           git diff --name-status --merge-base HEAD^ HEAD --diff-filter=MAR -- '*portfile.cmake' | sed 's/[MAR]\t*//' | while read filename; do grep -q -E '(vcpkg_install_cmake|vcpkg_build_cmake|vcpkg_configure_cmake|vcpkg_fixup_cmake_targets)' "$filename" && echo " - \`$filename\`" || true; done > .github-pr.deprecated-cmake
           git diff --name-status --merge-base HEAD^ HEAD --diff-filter=MAR -- '*vcpkg.json' | sed 's/[MAR]\t*//' | while read filename; do grep -q -E '"license": ' "$filename" || echo " - \`$filename\`" || true; done > .github-pr.missing-license
           ./vcpkg format-manifest --all --convert-control
diff --git a/build-vcpkg.ps1 b/build-vcpkg.ps1
index f23c1ba438cfd6..180f7421eead61 100644
--- a/build-vcpkg.ps1
+++ b/build-vcpkg.ps1
@@ -1,7 +1,7 @@
 $ErrorActionPreference = "Stop"
 
 function Invoke-VcpkgBuild($pkg) {
-	.\vcpkg.exe install $pkg`:x64-windows-mixed
+	.\vcpkg.exe install $pkg`:x64-windows-mixed --vcpkg-root .
 	if ($LastExitCode -ne 0) { throw }
 }
 
@@ -35,5 +35,5 @@ Invoke-VcpkgBuild "gtest"
 
 # export created libraries and set version
 .\vcpkg.exe export --x-all-installed --raw
-Move-Item -Path .\vcpkg-export-* -Destination .\vcpkg
+Move-Item -Path .\vcpkg-export-* -Destination .\vcpkg --vcpkg-root .
 Write-Output 16 > vcpkg\installed\version.txt