diff --git a/electron.js b/electron.js
index a8d7d86..b5adbfa 100644
--- a/electron.js
+++ b/electron.js
@@ -17,7 +17,7 @@ const AutoLaunch = require('auto-launch');
 let trayContextMenu;
 let mainWindow;
 let mainWindowTray;
-let mountedPIDs = {};
+let mountedData = {};
 let mountedLocations = [];
 let expectedUnmount = {};
 let launchHidden = false;
@@ -64,10 +64,11 @@ function createWindow() {
 
     // Unmount all items
     for (const i in mountedLocations) {
-      helpers.stopMountProcess(mountedPIDs[mountedLocations[i]], mountedLocations[i]);
+      const data = mountedData[mountedLocations[i]];
+      helpers.stopMountProcess(data.DataDirectory, data.Version, data.StorageType);
     }
     mountedLocations = [];
-    mountedPIDs = {};
+    mountedData = {};
   });
 
   if ((os.platform() === 'win32') || (os.platform() === 'linux')) {
@@ -363,11 +364,6 @@ ipcMain.on(Constants.IPC_Detect_Mounts, (event, data) => {
           Hyperspace: hsLocation,
           Sia: siaLocation,
           SiaPrime: siaPrimeLocation,
-        },
-        PIDS: {
-          Hyperspace: results.Hyperspace.PID,
-          Sia: results.Sia.PID,
-          SiaPrime: results.SiaPrime.PID,
         }
       });
     })
@@ -539,17 +535,20 @@ ipcMain.on(Constants.IPC_Mount_Drive, (event, data) => {
     console.log(data.StorageType + ' already mounted: ' + data.Location);
   } else {
     mountedLocations.push(data.Location);
-    mountedPIDs[data.Location] = -1;
+    mountedData[data.Location] = {
+      DataDirectory: dataDirectory,
+      Version: data.Version,
+      StorageType: data.StorageType,
+    };
     const errorHandler = (pid, error) => {
       if (mountedLocations.indexOf(data.Location) !== -1) {
         mountedLocations.splice(mountedLocations.indexOf(data.Location), 1);
-        delete mountedPIDs[data.Location];
+        delete mountedData[data.Location];
       }
 
       standardIPCReply(event, Constants.IPC_Unmount_Drive_Reply, {
         Expected: expectedUnmount[data.StorageType],
         Location: data.Location,
-        PID: -1,
         StorageType: data.StorageType,
       }, error || Error(data.StorageType + ' Unmounted'));
     };
@@ -557,12 +556,8 @@ ipcMain.on(Constants.IPC_Mount_Drive, (event, data) => {
       .executeMount(dataDirectory, data.Version, data.StorageType, data.Location, data.NoConsoleSupported, (error, pid) => {
         errorHandler(pid, error);
       })
-      .then(pid => {
-        if (pid !== -1) {
-          mountedPIDs[data.Location] = pid;
-        }
+      .then(() => {
         standardIPCReply(event, Constants.IPC_Mount_Drive_Reply, {
-          PID: pid,
           StorageType: data.StorageType,
         });
       })
@@ -603,9 +598,10 @@ ipcMain.on(Constants.IPC_Shutdown, () => {
 });
 
 ipcMain.on(Constants.IPC_Unmount_Drive, (event, data) => {
+  const dataDirectory = helpers.resolvePath(data.Directory);
   expectedUnmount[data.StorageType] = true;
   helpers
-    .stopMountProcess(data.PID, data.Location)
+    .stopMountProcess(dataDirectory, data.Version, data.StorageType)
     .then((result)=> {
       console.log(result);
     })
diff --git a/helpers.js b/helpers.js
index 2860a42..8f496e3 100644
--- a/helpers.js
+++ b/helpers.js
@@ -159,7 +159,7 @@ module.exports.executeAsync = (command, args=[]) => {
 module.exports.executeMount = (directory, version, storageType, location, noConsoleSupported, exitCallback) => {
   return new Promise((resolve) => {
     const processOptions = {
-      detached: os.platform() === 'win32',
+      detached: false,
       shell: true,
       stdio: 'ignore',
     };
@@ -199,9 +199,7 @@ module.exports.executeMount = (directory, version, storageType, location, noCons
       exitCallback(code, pid);
     });
 
-    if (os.platform() === 'win32') {
-      process.unref();
-    }
+    process.unref();
   });
 };
 
@@ -443,31 +441,22 @@ module.exports.setConfigValue = (name, value, directory, storageType, version) =
   });
 };
 
-module.exports.stopMountProcess = (pid, location) => {
+module.exports.stopMountProcess = (directory, version, storageType) => {
   return new Promise((resolve, reject) => {
     const processOptions = {
-      detached: true,
+      detached: false,
       shell: true,
       windowsHide: true,
     };
 
-    let procName = 'kill';
-    if (location && location.length > 0) {
-      procName = 'fusermount';
-    }
-    const command = (os.platform() === 'win32') ? 'taskkill.exe' : procName;
-    const args = [];
-    if (os.platform() === 'win32') {
-      args.push('/PID');
-    }
-    if (procName === 'fusermount') {
-      args.push('-u');
-      args.push(location);
-    } else {
-      args.push(pid);
+    const command = path.join(directory, version, (os.platform() === 'win32') ? 'repertory.exe' : 'repertory');
+    const args = ['-unmount'];
+    if (Constants.PROVIDER_ARG[storageType.toLowerCase()].length > 0) {
+      args.push(Constants.PROVIDER_ARG[storageType.toLowerCase()]);
     }
 
     const process = new spawn(command, args, processOptions);
+    const pid = process.pid;
     process.on('error', (err) => {
       reject(err);
     });
diff --git a/src/components/MountItem/MountItem.js b/src/components/MountItem/MountItem.js
index 5356a14..3f2742f 100644
--- a/src/components/MountItem/MountItem.js
+++ b/src/components/MountItem/MountItem.js
@@ -60,7 +60,7 @@ export default CSSModules((props) => {
             width='19px'/>;
 
   const actionsDisplay = (
-    <Button clicked={()=>props.clicked(props.title, !props.mounted, props.location, props.pid)}
+    <Button clicked={()=>props.clicked(props.title, !props.mounted, props.location)}
             col={inputColumnSpan + 2}
             colSpan={21}
             disabled={!props.allowMount || props.disabled}
diff --git a/src/containers/MountItems/MountItems.js b/src/containers/MountItems/MountItems.js
index 8acb3b7..7756370 100644
--- a/src/containers/MountItems/MountItems.js
+++ b/src/containers/MountItems/MountItems.js
@@ -19,7 +19,6 @@ class MountItems extends Component {
         AllowMount: false,
         DriveLetters: [],
         Mounted: false,
-        PID: -1,
       };
     }
     if (ipcRenderer) {
@@ -58,7 +57,7 @@ class MountItems extends Component {
     }
   };
 
-  handleMountUnMount = (storageType, mount, location, pid) => {
+  handleMountUnMount = (storageType, mount, location) => {
     if (ipcRenderer) {
       const state = {
         ...this.state[storageType],
@@ -82,7 +81,6 @@ class MountItems extends Component {
           ipcRenderer.send(Constants.IPC_Unmount_Drive, {
             Directory: this.props.directory,
             Location: location,
-            PID: pid,
             StorageType: storageType,
             Version: this.props.version,
           });
@@ -101,7 +99,6 @@ class MountItems extends Component {
           AllowMount: true,
           DriveLetters: (arg.data.DriveLetters[provider]),
           Mounted: (arg.data.Locations[provider].length > 0),
-          PID: arg.data.PIDS[provider],
         };
         mountsBusy = mountsBusy || state[provider].Mounted;
       }
@@ -135,7 +132,6 @@ class MountItems extends Component {
   onMountDriveReply = (event, arg) => {
     const state = {
       ...this.state[arg.data.StorageType],
-      PID: arg.data.PID,
       Mounted: arg.data.Success,
     };
     this.setState({
@@ -188,7 +184,6 @@ class MountItems extends Component {
                    key={'mi_' + items.length}
                    location={this.props[providerLower].MountLocation}
                    mounted={this.state[provider].Mounted}
-                   pid={this.state[provider].PID}
                    platform={this.props.platform}
                    title={provider} />
       ));