Are you unable to install or uninstall any programs on your Windows PC due to the following error?
MSI installation exception error occurred 1001
Error: 1001. An exception occurred during uninstallation. This exception will be ignored and the uninstallation will continue. Despite this, the application may not be completely uninstalled after uninstallation is complete.
Cause:
There are so many reasons behind installation error 1001 such as damaged or corrupted system files, missing dll file, system recovered from virus attack / malware, incomplete software installation, improper PC shutdown, incorrect entries in the log file, etc. Try each method one after the other and examine whether the error was fixed or not.
Method 1: fix using advanced system repair tool
The most common reason behind program installation failed is corrupt or damaged system files like DLL files, exe files, sys files, etc. There are hundreds of small system files that work for specific tasks. If one of the files is replaced, removes or damages, you may get the error 1001 Windows Installer.
Download and install the advanced system repair tool and scan your PC. Has the large database with 25 million files. It will find all the corrupted or deleted system files and reinstall them with the new one. After making the most of it with the advanced system repair tool, try installing the software again.
Method 2: Run the system file checker.
The System File Checker is a built-in Windows tool that scans entire system files and repairs them if an obstacle is found. It is very easy to use this tool. Just open command prompt as administrator, type the following command and hit Enter.
sfc / scannow
Method 3: apply clean boot
You can also try Clean Boot to install the software. When you open your PC in clean boot mode, the system starts up with only minimal services and tasks. Here is the detailed guide to start your PC in clean boot mode.
Method 4: Restore system
If you have created the System Restore Point before, this solution could change the life of your PC.
1. Open the Start menu and type System Restore in the search menu.
2. Select Create a system restore point from the search menu and open it.
3. Now go to the System Protection tab and then click on the System Restore button.
4. Now, follow the instructions on the screen and select the appropriate restore point and click Next.
5. Let the procedure finish and restart your PC.
Most of the time, when installing and uninstalling various softwares, replace system dll file and generate error 1001. But when you restore your PC with the above point, the problem is solved.
Method 5: re-register Windows installer services
Reregister Windows Installer services Resets all settings and fixes problems.
Paso 1: Open the Run dialog box by pressing Tecla de Windows + R simultaneously.
Paso 2: Kind MSIEXEC / UNREGISTER in the Run dialog box and click OK. This command will not display anything other than unregister Msiexec.exe proceedings.
Paso 3: Open the Run dialog box again and run the following command to register the Msiexec.exe file again.
MSIEXEC / REGSERVER
Paso 4: Restart the PC. Before rebooting, you should bookmark this post for more help.
Resume:
In this tutorial, I have tried to tell you some useful methods to fix the error 1001 Windows installer on your PC. As the situation differs in your PC settings and installed software, you should use Advanced System Repair to automatically fix this error.
