how to uninstall applications using command prompt

You could try this approach (untested):

1. Locate the uninstall registry value for your application, e.g. this one used by 7-Zip:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\96F071321C0420729002000010000000\InstallProperties\UninstallString 2. Execute the data found against this value:

MsiExec.exe /I{23170F69-40C1-2702-0920-000001000000}

Tejaskulkarni:

Pegasus suggestion should work. I have done it many times. You just need to be careful that you're uninstalling the right application. However, he left out some important facts:

1.- The proper registry key to find the Uninstall command of a program is under:

HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall

2.- Each one of the entries on the Uninstall key is a program or a component of a program.

3.- Just copy the data under the value "UninstallString" (double click on UninstallString, ctl+c, click cancel).

4.- Open a command prompt as an administrator:

• Click Start.
• Type cmd.
• Right click it, click Run as administrator.
• Click Yes or provide a password.

5.- Paste the uninstall command at the command prompt:

• Right click the control icon of the cmd window (the small icon on the upper left corner of the window).
• Move the mouse pointer down the list to Edit.
• Click on Paste.
• Press enter and the uninstall process should start.