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Whenever you install a software in Windows, most of the time it will come with an uninstaller that allows you to safely remove the program from your computer. If you’ve installed a software and suddenly Windows has stopped working, the logical way is to boot Windows in Safe Mode and then try to uninstall. Safe mode is a troubleshooting option for Windows that starts your computer in a limited state. Only the basic files and drivers necessary to run Windows are started. Unfortunately by default you can’t uninstall a software that is packaged with Windows Installer in Safe Mode. If you try to uninstall, you will get the error
“The Windows Installer service is not accessible in Safe Mode. Please try again when your computer is not in Safe Mode or you can use System Restore to return your machine to a previous good state.”

When you format your hard disk to install a fresh copy of Windows, you lose all your installed programs. Then you have to start from a scratch, installing Windows followed by drivers, then security programs and finally all your user programs. Things become a lot easier and faster if you know what to install, and that means having a list of applications to install. If you want to start from where you left before you decided to reformat the hard drive, you will need a list of applications that are currently installed on your machine; a list prepared months ago will be of no use, especially if you frequently install new programs.
Let me show you how you can quickly prepare such a list.

Method 1: Using Windows PowerShell

Click on the Start Menu and search for “PowerShell”. Press Enter to open Windows PowerShell.
Windows PowerShell, as the description on Wikipedia goes, is Microsofts task automation framework, consisting of a command-line shell and associated scripting language built on .NET Framework. PowerShell provides full access to COM and WMI, enabling administrators to perform administrative tasks on both local and remote Windows systems.
Now type the following command (simply copy and paste, and then hit the Enter key):

Get-WmiObject -Class Win32_Product | Select-Object -Property Name

After a brief pause, Windows PowerShell will list all programs installed on the machine.



If you want to redirect the output to a file just use the > sign, followed by the file name. For example:

Get-WmiObject -Class Win32_Product | Select-Object -Property Name > D:installedapps.txt

The list will be automatically copied to the file installedapps.txt on drive D:

Method 2: Using Command Prompt

Click on the Start Menu and search for “cmd”. Right-click on Command Prompt and then choose “Run as Administrator”.

In command prompt, type the following two commands:

WMIC 
product get name,version

This will display all the installed programs accompanied by the version number.



To export all the installed programs to a text file execute the following two commands:

WMIC 
/output:D:installedapps.txt product get name,version

Method 3: Using CCleaner

Unfortunately, method 1 and 2 produces only a partial list of installed programs. You can easily verify this if you compare this list with the list of installed programs displayed under “Programs and Features” applet in Control Panel.

To prepare a complete list of installed programs we will use CCleaner.

Open CCleaner and then click on the Tools icon. On the bottom right of the program’s window, click on the button “Save to text file” and then save the list of programs.



This list is complete and far more useful then the ones created by Command Prompt and Windows PowerShell. The list includes all installed programs, the version number, name of the publisher/developer, install date and size.

Also read: TGUP - Unattended applications downloader and installer and Reinstall Windows 8 Without Losing Installed Programs and Files