How does a Windows installer work?

How do I use Windows Installer?

To ensure Windows Installer engine is Current and Functioning:

  1. Click Start.
  2. Open Windows Command Prompt: …
  3. Type MSIexec and press Enter.
  4. If the Windows Installer engine (MSI) is working, there will be no error message, and a separate screen will open to display the MSI version number.

What is Windows Installer process?

Windows Installer (previously known as Microsoft Installer, codename Darwin) is a software component and application programming interface (API) of Microsoft Windows used for the installation, maintenance, and removal of software. … Windows Installer contains significant changes from its predecessor, Setup API.

What happens if I delete Windows installer?

If you delete WinSxs, well, you may save some space, but Windows features installation will require the DVD. … If you delete WinSxs, well, you may save some space, but Windows features installation will require the DVD. This is jow you could free up space in the Winsxs folder… Use the Disk Cleanup utility.

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Is it safe to delete Windows installer?

The C:WindowsInstaller folder contains Windows installer cache, it’s used to store important files for applications installed using the Windows Installer technology and should not be deleted. … You can use Disk Cleanup to reduce the number of unnecessary files on your drives, which can help your PC run faster.

Why is Windows Installer always running?

So when you see this process running, it definitely means that some software is being installed, changed, or uninstalled. Many software use the Windows Installer to carry out the installation process.

Why Windows Installer is not working?

In the Run prompt, type MSIExec, and then press Enter. … msc to open Windows Services and go to Windows Installer, and restart it. 3] Windows Installer Service could not be accessed. This usually happens if the Windows Installer Engine is corrupted, installed incorrectly, or disabled.

How do you stop Windows from running?

To stop the process, you must search for its process in the Task Manager.

  1. Press «Ctrl» + «Shift» + «Esc» on your keyboard to open the Task Manager without any intermediate screen.
  2. Click the «Processes» tab. Scroll down to «msiexec.exe,» right-click it and click «End Process.» Try running another installer now.

How do I know if Windows Installer 3.1 is installed?

On the «Run» window, type «msiexec». A window will come up showing the Windows Installer version on the first line. If you want to check the version of the Windows Installer on your system, check the version of MSI.

Is msiexec exe a virus?

Is msiexec.exe a virus? No, it is not. The true msiexec.exe file is a safe Microsoft Windows system process, called «Windows installer». However, writers of malware programs, such as viruses, worms, and Trojans deliberately give their processes the same file name to escape detection.

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Is it OK to delete installer files?

A. If you have already added the programs to your computer, you can delete the old installation programs piling up in the Downloads folder. Once you have run the installer files, they just sit dormant unless you need to reinstall the program you downloaded.

Can Windows Installer patches be deleted?

Only files in the C:WindowsInstaller$PatchCache$ directory, called the baseline cache, are safe to delete. … While clearing the baseline cache is safe, if you ever want to uninstall a patch in the future, you’ll need to download the specific patch’s installer file.

Can I delete old Windows installer files?

Removing old Windows installation files can’t be done by simply selecting them and moving them to the Recycle Bin. You have to use Disk Cleanup, but luckily the process is simple and won’t take long. … Type Disk Cleanup.

What files can I remove from Windows 10?

Windows suggests different types of files you can remove, including Recycle Bin files, Windows Update Cleanup files, upgrade log files, device driver packages, temporary internet files, and temporary files.

Can I delete .msp files from Windows installer?

C:WindowsInstaller is where Windows Installer stores cached copies of the setup packages (. … msp) used for your currently installed programs. These files are required if you want to update, modify, or uninstall a program on your computer. Do not delete them blindly.

Can WinSxS be deleted?

One commonly asked question is, «Can I delete the WinSxS folder to regain some disk space?» The short answer is no. … Deleting files from the WinSxS folder or deleting the entire WinSxS folder may severely damage your system so that your PC might not boot and make it impossible to update.