diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index f9676ec..862b46b 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -41,17 +41,9 @@ jobs:
           cache-prefix: "z1"
           allow-prerelease-opam: true
 
-
-
       - name: wintest
         run: |
-          bash -c "ls C:/hostedtoolcache/windows/cygwin/3.5.3/x86_64/setup-x86_64.exe"
-          bash -c "mkdir -p D:/.opam/.cygwin"
-          bash -c "cp C:/hostedtoolcache/windows/cygwin/3.5.3/x86_64/setup-x86_64.exe D:/.opam/.cygwin/"
-          bash -c "ls D:/.opam/"
-          bash -c "ls D:/.opam/.cygwin"
-          bash -c "ls D:/cygwin/var/log"
-          bash -c "rm -rf D:/cygwin/var/log"
+          bash -c "cat D:/cygwin/var/log/setup.log.full"
         if: runner.os == 'Windows'
 
       - run: opam install -v . --with-test --deps-only