diff --git a/main.js b/main.js
index b051c87..5eb9629 100644
--- a/main.js
+++ b/main.js
@@ -1,5 +1,6 @@
 const Factory = require('./factory.js')
 const { app, BrowserWindow, ipcMain, ipcRenderer } = require('electron')
+const { tmpdir } = require('node:os')
 const path = require('node:path')
 
 const createWindow = () => {
@@ -12,11 +13,12 @@ const createWindow = () => {
   })
   win.loadFile('index.html')
 }
+tmp = tmpdir()
 app.disableHardwareAcceleration()
 app.whenReady().then(() => {
   ipcMain.handle('run', (_, param) => {
     Factory.get(param.workflow)
-    Factory.workflow.run(param.application, param, './tmp/')
+    Factory.workflow.run(param.application, param, tmp)
   })
   createWindow()
   app.on('window-all-closed', () => {
diff --git a/tmp/.gitignore b/tmp/.gitignore
deleted file mode 100644
index c96a04f..0000000
--- a/tmp/.gitignore
+++ /dev/null
@@ -1,2 +0,0 @@
-*
-!.gitignore
\ No newline at end of file
diff --git a/workflows/energy_plus/module/module.js b/workflows/energy_plus/module/module.js
index 1e18c01..1249bbf 100644
--- a/workflows/energy_plus/module/module.js
+++ b/workflows/energy_plus/module/module.js
@@ -49,11 +49,11 @@ exports.run = async (application, param, tmp_path) => {
             var blob = await response.blob()
             const buffer = Buffer.from(await blob.arrayBuffer())
             require("fs").writeFile(
-                `${tmp_path}energyplus_results.zip`,
+                `${tmp_path}/energyplus_results.zip`,
                 buffer,
                 (err) => { console.log(err ? err : 'energy+ zip saved'); }
             )
-            BrowserWindow.fromId(1).webContents.send('task-completed', '<a href="../../tmp/energyplus_results.zip">Energy plus results</a>')
+            BrowserWindow.fromId(1).webContents.send('task-completed', `<a href="${tmp_path}/energyplus_results.zip">Energy plus results</a>`)
             return
         }
         else if  (response.status == 400) {
diff --git a/workflows/meb/module/module.js b/workflows/meb/module/module.js
index 942d3c7..a5dec0d 100644
--- a/workflows/meb/module/module.js
+++ b/workflows/meb/module/module.js
@@ -85,11 +85,11 @@ exports.run = async (application, param, tmp_path) => {
                 meb_lines.push(meb)
             }
             require("fs").writeFile(
-                `${tmp_path}meb.csv`,
+                `${tmp_path}/meb.csv`,
                 `${meb_header}\n${meb_lines.join('\n')}`,
                 function (err) { console.log(err ? err : 'meb saved') }
             )
-            BrowserWindow.fromId(1).webContents.send('task-completed', '<a href="../../tmp/meb.csv">meb</a>')
+            BrowserWindow.fromId(1).webContents.send('task-completed', `<a href="${tmp_path}/meb.csv">meb</a>`)
             return
         }
         else if  (response.status == 400) {
diff --git a/workflows/retrofit/module/module.js b/workflows/retrofit/module/module.js
index 81bd9f1..be8e0b4 100644
--- a/workflows/retrofit/module/module.js
+++ b/workflows/retrofit/module/module.js
@@ -172,21 +172,21 @@ exports.run = async (application, param, tmp_path) => {
                 })
             }
             require("fs").writeFile(
-                `${tmp_path}meb.csv`,
+                `${tmp_path}/meb.csv`,
                 `${meb_header}\n${meb_lines.join('\n')}`,
                 function (err) { console.log(err ? err : 'meb saved') }
             )
             require("fs").writeFile(
-                `${tmp_path}cost.csv`,
+                `${tmp_path}/cost.csv`,
                 `${costs_header}\n${cost_lines.join('\n')}`,
                 function (err) { console.log(err ? err : 'cost saved') }
             )
             require("fs").writeFile(
-                `${tmp_path}operational_co2.csv`,
+                `${tmp_path}/operational_co2.csv`,
                 `${operational_co2_header}\n${operational_co2_lines.join('\n')}`,
                 function (err) { console.log(err ? err : 'operational_co2 saved') }
             )
-            BrowserWindow.fromId(1).webContents.send('task-completed', '<a href="../../tmp/meb.csv">meb</a><br /><a href="../../tmp/cost.csv">costs</a><br /><a href="../../tmp/operational_co2.csv">operational_co2</a>')
+            BrowserWindow.fromId(1).webContents.send('task-completed', `<a href="${tmp_path}/meb.csv">meb</a><br /><a href="${tmp_path}/cost.csv">costs</a><br /><a href="${tmp_path}/operational_co2.csv">operational_co2</a>`)
         }
         else {
             console.log('unautorized retrofit')