diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 658f44383b82a..5edfad8811b9a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -561,7 +561,7 @@ jobs:
 
   build-binary-windows-aarch64:
     needs: determine_changes
-    timeout-minutes: 30
+    timeout-minutes: 45
     if: ${{ github.repository == 'astral-sh/uv' && !contains(github.event.pull_request.labels.*.name, 'no-test') && (needs.determine_changes.outputs.code == 'true' || github.ref == 'refs/heads/main') }}
     runs-on:
       labels: github-windows-11-aarch64-4
@@ -578,14 +578,96 @@ jobs:
         run: |
           Start-Process -FilePath "LLVM-19.1.5-woa64.exe" -ArgumentList '/S' -NoNewWindow -Wait
 
-      - name: Install Build Tools (aarch64)
+      - name: Cache VS Build Tools Packages
+        uses: actions/cache@v3
+        with:
+          path: C:\ProgramData\Microsoft\VisualStudio\Packages
+          key: vs-build-tools-${{ runner.os }}-aarch64
+
+      - name: Cache VS Build Tools Packages
+        id: cache-vs-build-tools
+        uses: actions/cache@v3
+        with:
+          path: |
+            C:\ProgramData\Microsoft\VisualStudio\Packages
+            C:\Program Files (x86)\Microsoft Visual Studio
+          key: vs-build-tools-${{ runner.os }}-aarch64
+
+      - name: Install Build Tools (ARM64)
         run: |
           Set-ExecutionPolicy Bypass -Scope Process -Force
           [System.Net.ServicePointManager]::SecurityProtocol = [System.Net.ServicePointManager]::SecurityProtocol -bor 3072
-          iex ((New-Object System.Net.WebClient).DownloadString('https://chocolatey.org/install.ps1'))
-          Add-Content -Path $env:GITHUB_PATH -Value "C:\ProgramData\chocolatey\bin" -Encoding utf8
-          choco install visualstudio2022buildtools -y --no-progress --package-parameters "--add Microsoft.VisualStudio.Component.VC.Tools.ARM64 --add Microsoft.VisualStudio.Component.Windows11SDK.22621 --add Microsoft.VisualStudio.ComponentGroup.NativeDesktop.Llvm.Clang --add Microsoft.VisualStudio.Component.VC.CMake.Project"
-          choco cache list -v
+          
+          Write-Host "Downloading VS Build Tools..."
+          Invoke-WebRequest -Uri https://aka.ms/vs/17/release/vs_buildtools.exe -OutFile vs_buildtools.exe -Verbose
+          
+          Write-Host "Starting installation..."
+          $process = Start-Process -FilePath .\vs_buildtools.exe -ArgumentList @(
+              "--quiet",
+              "--norestart",
+              "--nocache",
+              "--wait",
+              "--installPath", "${env:ProgramFiles(x86)}\Microsoft Visual Studio\2022\BuildTools",
+              "--add", "Microsoft.VisualStudio.Workload.VCTools",
+              "--add", "Microsoft.VisualStudio.Component.VC.Tools.ARM64",
+              "--add", "Microsoft.VisualStudio.Component.Windows11SDK.22621",
+              "--add", "Microsoft.VisualStudio.ComponentGroup.NativeDesktop.Llvm.Clang",
+              "--add", "Microsoft.VisualStudio.Component.VC.CMake.Project"
+          ) -NoNewWindow -Wait -PassThru
+          
+          $exitCode = $process.ExitCode
+          Write-Host "Installation completed with exit code: $exitCode"
+          
+          # Run modify instead of repair if cache was restored
+          if ("${{ steps.cache-vs-build-tools.outputs.cache-hit }}" -eq 'true') {
+              Write-Host "Cache was restored - running modify to ensure components..."
+              $process = Start-Process -FilePath .\vs_buildtools.exe -ArgumentList @(
+                  "--quiet",
+                  "--norestart",
+                  "--wait",
+                  "modify",
+                  "--installPath", "${env:ProgramFiles(x86)}\Microsoft Visual Studio\2022\BuildTools",
+                  "--add", "Microsoft.VisualStudio.Workload.VCTools",
+                  "--add", "Microsoft.VisualStudio.Component.VC.Tools.ARM64",
+                  "--add", "Microsoft.VisualStudio.Component.Windows11SDK.22621",
+                  "--add", "Microsoft.VisualStudio.ComponentGroup.NativeDesktop.Llvm.Clang",
+                  "--add", "Microsoft.VisualStudio.Component.VC.CMake.Project"
+              ) -NoNewWindow -Wait -PassThru
+              
+              $exitCode = $process.ExitCode
+              Write-Host "Modify completed with exit code: $exitCode"
+              
+              if ($exitCode -ne 0) {
+                  Write-Host "Modify failed - attempting full reinstall..."
+                  $process = Start-Process -FilePath .\vs_buildtools.exe -ArgumentList @(
+                      "--quiet",
+                      "--norestart",
+                      "--wait",
+                      "--force",  # Force a new installation
+                      "--installPath", "${env:ProgramFiles(x86)}\Microsoft Visual Studio\2022\BuildTools",
+                      "--add", "Microsoft.VisualStudio.Workload.VCTools",
+                      "--add", "Microsoft.VisualStudio.Component.VC.Tools.ARM64",
+                      "--add", "Microsoft.VisualStudio.Component.Windows11SDK.22621",
+                      "--add", "Microsoft.VisualStudio.ComponentGroup.NativeDesktop.Llvm.Clang",
+                      "--add", "Microsoft.VisualStudio.Component.VC.CMake.Project"
+                  ) -NoNewWindow -Wait -PassThru
+                  
+                  $exitCode = $process.ExitCode
+                  Write-Host "Reinstall completed with exit code: $exitCode"
+              }
+          }
+          
+          # Verify clang installation
+          $clangPath = "${env:ProgramFiles(x86)}\Microsoft Visual Studio\2022\BuildTools\VC\Tools\Llvm\bin\clang.exe"
+          if (Test-Path $clangPath) {
+              Write-Host "Clang found at: $clangPath"
+              & $clangPath --version
+          } else {
+              Write-Host "Clang not found at expected location: $clangPath"
+              Write-Host "Directory contents:"
+              Get-ChildItem "${env:ProgramFiles(x86)}\Microsoft Visual Studio\2022\BuildTools\VC\Tools" -Recurse | Select-Object FullName
+              exit 1
+          }
 
       - name: Add clang to PATH and check if clang exists
         run: |