diff --git a/windows-1809/base/Dockerfile b/windows-1809/base/Dockerfile
index 8ea2131c6df4b4fda7369072272a1cf90e62d8fb..3f186a87e100d8ecf432b90675bdf7b271ee1795 100644
--- a/windows-1809/base/Dockerfile
+++ b/windows-1809/base/Dockerfile
@@ -32,20 +32,20 @@ ADD powershell/20-MSVC-15.9.ps1 /Windows/System32/WindowsPowerShell/v1.0/profile
 COPY qtifwsilent.qs C:/qtifwsilent.qs
 RUN [Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; \
     (New-Object Net.WebClient).DownloadFile('https://download.qt.io/official_releases/qt/5.12/5.12.8/qt-opensource-windows-x86-5.12.8.exe', 'C:/qt.exe'); \
-    $env:QT_INSTALL_DIR = 'C:/Qt'; \
+    $env:QT_INSTALL_DIR = 'C:/ProgramData/Qt'; \
     Add-Content "\"/Windows/System32/drivers/etc/hosts\"" "\"`r`n127.0.0.1 iapi.qt.io`r`n::1 iapi.qt.io\""; \
     Start-Process C:/qt.exe -NoNewWindow -Wait -ArgumentList '--verbose --script C:/qtifwsilent.qs'; \
     Remove-Item -Force C:/qtifwsilent.qs; \
     Remove-Item -Force C:/qt.exe; \
-    [Environment]::SetEnvironmentVariable('Qt5_DIR', 'C:/Qt/5.12.8/msvc2017_64', [EnvironmentVariableTarget]::Machine)
+    [Environment]::SetEnvironmentVariable('Qt5_DIR', 'C:/ProgramData/Qt/5.12.8/msvc2017_64', [EnvironmentVariableTarget]::Machine)
 
 RUN [Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12; \
     (New-Object Net.WebClient).DownloadFile('https://www.baslerweb.com/fp-1551786641/media/downloads/software/pylon_software/Basler_pylon_5.2.0.13457.exe', 'C:/Basler_pylon_5.2.0.13457.exe'); \
-    Start-Process C:/Basler_pylon_5.2.0.13457.exe -NoNewWindow -Wait -ArgumentList '/quiet /install=SDKs /targetpath=C:/Pylon5'; \
+    Start-Process C:/Basler_pylon_5.2.0.13457.exe -NoNewWindow -Wait -ArgumentList '/quiet /install=SDKs /targetpath=C:/ProgramData/Pylon5'; \
     Remove-Item -Force C:/Basler_pylon_5.2.0.13457.exe; \
-    [Environment]::SetEnvironmentVariable('Pylon5_DIR', 'C:/Pylon5/Development', [EnvironmentVariableTarget]::Machine);
+    [Environment]::SetEnvironmentVariable('Pylon5_DIR', 'C:/ProgramData/Pylon5/Development', [EnvironmentVariableTarget]::Machine);
 
-RUN $vcpkg_dir = 'C:/vcpkg'; \
+RUN $vcpkg_dir = 'C:/ProgramData/vcpkg'; \
     git clone -b robofish --single-branch https://git.imp.fu-berlin.de/bioroboticslab/robofish/vcpkg.git; \
     cd $vcpkg_dir; \
     git checkout d61d47c5cac2198bf0262d75742e8a4a38e573d6; \