w to Clean Registry and Fix Wilcom e4.2 “Revert” Installation Error
META DESCRIPTION: Fix Wilcom e4.2 Revert Error by cleaning registry entries. Complete guide to resolve installation rollback problems.
FOCUS KEYWORD: Fix Wilcom e4.2 Revert Error
# How to Clean Registry and Fix Wilcom e4.2 “Revert” Installation Error
Nothing is more frustrating than sitting through a lengthy Wilcom EmbroideryStudio e4.2 installation only to see a “Revert” error at the end. The installer rolls back all changes, and you are left without working software. This error typically indicates that something in your system is blocking the installation process. This guide explains what causes the Wilcom e4.2 Revert Error and how to fix it by cleaning registry entries and resolving the underlying issues.
## What Does the “Revert” Error Mean?
When the Wilcom installer displays a “Revert” message, it means the installation process encountered a fatal error and the Windows Installer rolled back all changes to return your system to its previous state. Nothing from the new installation was kept. This is actually a safety mechanism designed to prevent partially installed and broken software from remaining on your system.
## Common Causes of the Revert Error
**Previous Installation Not Fully Removed**
If a previous version of Wilcom or a failed installation attempt left behind files, registry entries, or services, the new installer can conflict with these remnants.
**Corrupted Registry Entries**
Windows registry keys left behind from previous installations can confuse the installer, causing it to fail and revert.
**Antivirus Software Blocking the Installer**
During installation, Wilcom writes files to system directories and modifies registry entries. Aggressive antivirus software can block these operations, triggering the revert.
**Insufficient Disk Space**
The installer needs temporary space to extract files before copying them to the final location. Running low on disk space can cause the installation to fail.
**Conflicting Software**
Other software running on your system, especially protection software or other installers, can lock files or registry keys that the Wilcom installer needs to modify.
**Windows Installer Service Issues**
If the Windows Installer service is corrupted, disabled, or stuck in a bad state, it cannot complete the installation process.
## Step-by-Step Solutions to Fix the Revert Error
### Solution 1: Manually Clean Wilcom Registry Entries
残留的注册表项是最常见的回滚错误原因。清除它们可以为新的安装提供干净的环境。
1. Press Windows Key + R, type regedit, and press Enter to open Registry Editor
2. Navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Wilcom and delete the entire Wilcom key
3. Navigate to HKEY_CURRENT_USER\SOFTWARE\Wilcom and delete that key as well
4. Check HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Wilcom on 64-bit systems and delete if present
5. Search for any other entries containing “Wilcom” and remove them
6. Close Registry Editor
**Important**: Always back up your registry before making changes. In Registry Editor, click File > Export to save a backup.
### Solution 2: Delete Wilcom Installation Folders
Remove any leftover folders from previous installations.
1. Open File Explorer and navigate to C:\Program Files
2. Delete the Wilcom folder if it exists
3. Navigate to C:\Program Files (x86) and delete the Wilcom folder if it exists
4. Check C:\ProgramData for any Wilcom folders and remove them
5. Navigate to C:\Users\[YourUsername]\AppData\Local and delete the Wilcom folder
6. Check C:\Users\[YourUsername]\AppData\Roaming and delete the Wilcom folder
### Solution 3: Use Revo Uninstaller to Clean Leftovers
Revo Uninstaller is an excellent tool for removing all traces of previously installed software.
1. Download and install Revo Uninstaller (free version works fine)
2. Open Revo Uninstaller and look for any Wilcom entries in the program list
3. If found, right-click and select “Uninstall”
4. Choose the “Advanced” scanning mode to find all leftover files and registry entries
5. Delete all found remnants
6. Restart your computer before attempting a fresh installation
### Solution 4: Run the Installer as Administrator
Always run the Wilcom installer with elevated privileges.
1. Locate the Wilcom setup.exe file
2. Right-click on it and select “Run as Administrator”
3. If prompted by User Account Control, click “Yes”
4. Complete the installation without interruption
### Solution 5: Disable Antivirus During Installation
Temporarily disable your antivirus software to prevent it from blocking the installation process.
1. Right-click your antivirus icon in the system tray
2. Select “Disable” or “Pause protection”
3. Choose to disable for 30 minutes or until restart
4. Run the Wilcom installer as administrator
5. After installation completes, re-enable your antivirus immediately
6. Add the Wilcom installation folder to your antivirus exclusion list
### Solution 6: Verify Windows Installer Service Is Running
The Windows Installer service must be active for any MSI-based installation to work.
1. Press Windows Key + R, type services.msc, and press Enter
2. Find “Windows Installer” in the list
3. Check that the status shows “Running”
4. If not, right-click and select “Start”
5. Set the startup type to “Manual” (this is the correct setting)
6. If the service will not start, you may need to re-register it using: msiexec /unregister followed by msiexec /regserver in an elevated Command Prompt
### Solution 7: Use Microsoft Program Install Troubleshooter
Microsoft offers a dedicated troubleshooter that can fix installation issues.
1. Download the Program Install and Uninstall troubleshooter from Microsoft’s website
2. Run the troubleshooter
3. Select “Installing” when prompted about the type of problem
4. Select Wilcom EmbroideryStudio from the list (or choose “Not Listed” to manually remove entries)
5. Follow the troubleshooter’s instructions to clean up failed installations
6. Run the Wilcom installer again after the troubleshooter completes
### Solution 8: Free Up Disk Space
Ensure you have sufficient disk space for the installation.
1. Open File Explorer and check your C: drive free space
2. Wilcom e4.2 requires at least 10GB of free space during installation
3. Run Disk Cleanup by pressing Windows Key + R, typing cleanmgr, and selecting your system drive
4. Check temporary files, Windows update cleanup, and recycle bin
5. Click OK to free up space
## After Successful Installation
Once you get past the Revert error and complete the installation, take these steps to prevent future issues:
1. Immediately add the Wilcom installation folder to your antivirus exclusion list
2. Create a system restore point so you can roll back if future problems arise
3. Keep a copy of the installation files in a safe location for future repairs
## Frequently Asked Questions
### Is it safe to manually edit the Windows Registry to fix the Revert error?
Yes, as long as you follow the exact steps and create a backup before making changes. The registry keys related to Wilcom are application-specific and removing them does not affect Windows stability. Always export a backup before editing.
### Why does the Revert error happen during the last 10% of installation?
This is common because the installer performs final registration, shortcut creation, and service configuration in the last phase. If any of these operations fail due to permissions or conflicting entries, the entire installation is rolled back.
### Can I install Wilcom e4.2 in a different drive to avoid the Revert error?
Yes. If your C: drive is full or has corrupted system files, installing to a different drive (like D:) can sometimes bypass the issue. However, you should still clean up old registry entries and folders first.
### What if the Revert error persists after cleaning everything?
Try performing a clean boot of Windows to eliminate third-party software interference, then run the installer. If the error still persists, there may be corruption in the Windows Installer service itself, which the Microsoft Program Install Troubleshooter can fix.
### Will using System Restore to a point before a failed installation work?
System Restore can sometimes help if the failed installation modified system files that are now causing the revert. Restore to a point before the first failed attempt, clean up any leftover files manually, and try installing again.
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