diff --git a/electron-builder.imex.yml b/electron-builder.imex.yml
index d127c8f..07022f3 100644
--- a/electron-builder.imex.yml
+++ b/electron-builder.imex.yml
@@ -26,7 +26,6 @@ nsis:
   shortcutName: ${productName}
   uninstallDisplayName: ${productName}
   createDesktopShortcut: always
-  perMachine: true # Ensure elevated privileges
   include: "scripts/installer.nsh" # Reference NSIS script from scripts directory
 mac:
   entitlementsInherit: build/entitlements.mac.plist
diff --git a/electron-builder.rome.yml b/electron-builder.rome.yml
index 89a7342..958819d 100644
--- a/electron-builder.rome.yml
+++ b/electron-builder.rome.yml
@@ -26,7 +26,6 @@ nsis:
   shortcutName: ${productName}
   uninstallDisplayName: ${productName}
   createDesktopShortcut: always
-  perMachine: true  # Ensure elevated privileges
   include: "scripts/installer.nsh" # Reference NSIS script from scripts directory
 mac:
   entitlementsInherit: build/entitlements.mac.plist
diff --git a/src/main/ipc/paintScaleHandlers/PPG.ts b/src/main/ipc/paintScaleHandlers/PPG.ts
index 54d46c6..da66331 100644
--- a/src/main/ipc/paintScaleHandlers/PPG.ts
+++ b/src/main/ipc/paintScaleHandlers/PPG.ts
@@ -53,7 +53,8 @@ export async function ppgInputHandler(config: PaintScaleConfig): Promise<void> {
         await parseStringPromise(xmlContent);
       } catch (error) {
         log.error(`Invalid XML in ${filePath}:`, error);
-        const errorPath = path.join(errorDir, path.basename(filePath));
+        const timestamp = Date.now().toString(); // similar to DateTime.Now.Ticks in C#
+        const errorPath = path.join(errorDir, `${timestamp}.xml`);
         await fs.rename(filePath, errorPath);
         log.debug(`Moved invalid file to error: ${errorPath}`);
         continue;
@@ -92,7 +93,8 @@ export async function ppgInputHandler(config: PaintScaleConfig): Promise<void> {
         if (response.status === 200) {
           log.info(`Successful upload of ${filePath}`);
           // Move file to archive
-          const archivePath = path.join(archiveDir, path.basename(filePath));
+          const timestamp = Date.now().toString(); // generate new timestamp
+          const archivePath = path.join(archiveDir, `${timestamp}.xml`);
           await fs.rename(filePath, archivePath);
           log.debug(`Moved file to archive: ${archivePath}`);
         } else {