Reg Key Uninstall String

[Twyla Plack]

Howeverwhen I try the command in CMD(as admin) it does not find the uninstall. When I run Program files, program files finds wherever this MSI is behind the scenes and uninstalls it so Windows knows where it is ultimately.

I just need a little reassurance here. I am creating a basic C# program that, among other things, will uninstall and reinstall the most current version of a program (I can't build this functionality into the program itself). The way I am doing it is by:

See "To uninstall a product"; you can specify a ProductCode, which is globally unique by definition. So you won't uninstall any other product. You can also specify the msi filename, but you have to be more carefull, as it can happen that different products get the same filename. So using the ProductCode is the best way to do this.

Hi guys, I am trying to uninstall an application on a remote server using uninstallstring, a property of Get-ItemProperty cmdlet in PowerShell, but failing to do so. I have also tried suggestions explained in another thread, click here to access the thread, however, my following script still do not uninstall the program, so please have a look.

I was so embarrassed when you pointed out my silly mistake Chance F, however, when I checked my actual script, the location was correct there. Therefore, the mistake occurred while tweaking the text of the script on the textbox, before posting this thread. I have edited the script of the original post.

Yes, I have tried running uninstall string in command prompt, elevated permissions, and I received UAC prompt in order to proceed the uninstall. So, is there any way to bypass UAC in PowerShell to accomplish this task?

Moreover, I was trying to create an answer file in order to capture the inputs from the uninstall process, and thereby executing uninstall.exe, the file where uninstallstring points to, silently. However, I am unsuccessful so far.

On a side note, if you did have an MSI install and you wanted it to uninstall I would suggest running the following first. It would allow you to see the exact name you would need to uninstall the MSI package

Additionally, I feel the need to give credit where credit is due - I built this idea on the foundation of what

@jim discussed in Dynamic Uninstall - The Toolkit / Complete Deployment Scripts - PSAppDeployToolkit Community.

The one glaring weakness of this, in my opinion, is that it is currently calling the UninstallString natively provided by the Get-InstalledApplication function. I might be able to improve upon this by attempting to obtain the QuietUninstallString if one exists. Otherwise, additional parameters need to be added on a per-app basis to make the uninstall silent. If I were to rebuild this as a function, I suppose I could put an optional parameter in place to add the required silent parameters for the app.

Right now, in my environment, I am using this only when necessary. I prefer to use Remove-MSIApplications by default, then Execute-Process if an application generally has the same uninstall string regardless of versions but does not use msiexec. I only use this in scenarios where the UninstallString may be different from version to version - such as when the folder where the application is installed also references a specific version number, which can make removing multiple versions difficult.

Checking at -US/b8e4cda5-2806-484f-80cf-f8e0f2a98f2f/command-to-uninstall-office-2016-and-contentlocation-of-uninstallxml-file?forum=configmanagerapps , it looks like you have to create an XML answer file for the Office uninstall, and then feed that on the command line.

I was under the impression that if you could get it to run on the local machines command line that you could get it to work through Bigfix. Do you mean use this uninstall string but instead of calling the osetup.dll create that config file and call it instead?

So I have an old Hyperion software that appears to use installshield. As with other installshield apps, I am normally able to record and create a response file for uninstallation. I cannot in this situation and have tried every switch I can think of to make it silent. When using the /r switch or any other switch, the only message I get is an InstallShield Wizard popup stating "The wizard cannot continue because of the following error: Invalid command line option: /r is not a valid command line option (1001) (403)"

So I moved on to the registry to look for an uninstall string to maybe use. Alas, at HKLMSoftwareWow6432NodeMicrosoftWindowsCurrentVersionUninstallHyp2 I see an UninstallString value "C:Program FilesHyp2_uninstuninstallClient.exe"

So I'm looking around and notice Autoit V3 has a very similar registry value at HKLMSoftwareWow6432NodeMicrosoftWindowsCurrentVersionUninstallAutoItv3, an UninstallString with the value "C:Program Files (x86)AutoIt3Uninstall.exe"

That being said, has anyone done a silent uninstallation of Autoit V3 using that UninstallString? Or, might anyone have any suggestions? I would post code but this should just be a one liner and so far nothing has worked.

I tried that via command line and it didn't work. I got an InstallShield Wizard popup stating "The wizard cannot continue because of the following error: Invalid command line option: /s is not a valid command line option (1001) (403)"

Edit: If you are talking about doing the above uninstalling autoit from a command: C:Program Files (x86)AutoIt3Uninstall.exe /s , that just brings up an Autoit uninstall window for you to make selections. Reason I used autoit for comparison is it contains the same exact type UninstallString path in the registry as this program, ending with an exe. Nothing regarding msi, switches, anything

Usually silent uninstall works with MSI installers, but MSI installs should show up on WMIC. There is a tool that I use to force uninstall programs and it will scrub the registry for any associated entries that might help you isolate what you need. The tool is called "revo uninstaller". Its kinda a pain to find a bloatware free version, but you can get one here (its under utilities).

I cannot use Revo unfortunately as I will be pushing this to machines and need to automate it. I can try to use it to find other entries though. Ive searched up and down the registry and what I typed above is the closest I have found.

I tried using /?, -help, --help, in the command window and just get the same InstallShield Wizard error, "The wizard cannot continue because of the following error: Invalid command line option: /? is not supported (1001) (403)

What do you use for repackaging, or do you normally just script the available installer? I know AdminStudio has a module that will let you tear an installer apart to write your own uninstaller if you need.

I normally use whatever the app calls for, sometimes InstallShield, Wise, and most of the time I can script out installs just using autoit. I have AdminStudio but am not aware of this module to do that.

I've spent a significant amount of time looking for a means to silently uninstall MWB via command line script with no user interaction.

None of the normal uninstall settings were functioning correctly.

I don't know if this will prove helpful to you at all, but Malwarebytes uses Inno Setup for its installation packages and the default uninstall commands/switches for Inno Setup can be found here.

That said, for certain business versions it is also possible to deploy the product in an MSI installation package and I do not know if the default MSI uninstall commands work in those situations or not but documentation for MSI installation/uninstallation commands may be found here as well as here.

That said, it is also possible that uninstalling Malwarebytes remotely without authentication/user input is prevented for security purposes (to prevent malware/hackers from automating the uninstall process to bypass Malwarebytes protection) so you may need to refer to the Malwarebytes business product documentation provided when the product was purchased or contact Malwarebytes Business Support directly for further information and assistance.

If the MSI installer cache has been removed by any popular desktop cleanup utility, this option will not be available to you. It would be best for you to use the cleaning tools we have made for this purpose. See this KB article - -2333

Select the Uninstall key and "Find" from the "Edit" menu. Search for "Java." This should show which subkey the Java is located under. One of the keys is "UninstallString." Use this command to uninstall Java. Note however, this will only work on other machines if the exact same version of Java is installed.

We are looking for a solution to this as we currently have the SSL VPN deployed to roughly 1000 endpoints and are wanting to upgrade to Sophos Connect Client 2.0. I cannot find anything online on how to silently uninstall the Legacy SSL VPN Client and have tried the uninstall.exe in C:\Program Files (x86)\Sophos\Sophos SSL VPN Client\ with all the silent flags I could think of to no avail.

This ended up working for the most part, I had to add a kill process before running the uninstall otherwise you got as GUI pop-up and ran into some issues with running this as system (which our RMM tool does) but either way THANKS!!

as the scripted uninstall for SESC article suggests you should gather the current applicable uninstall strings (that not necessarily are solely msiexec) and use them to build the script. This is recommended especially for SESC as many versions are available to an SESC customer. Central is stricter but taking controlled updates and Early Access programs into account you can still have more than two versions of a component.

Heard that Sophos is working on a flexible tool that assesses the installed components and gathers the correct uninstall strings. Until then the mentioned method is your best option. Please note that the product codes might change without notice.

An article that lists all potential components is IMO simply not feasible - and furthermore you'd have to consult it right before using the script, last week's codes might be outdated.

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