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Short backstory: Recently I've installed MAMP as I want to start learning PHP. I got version 4.1.1 from the MAMP homepage, Apache didn't start. This seems to be a common bug for that version, I found a solution in downloading version 4.1.0. Both servers started but the Open WebStart Page didn't work.

My Problem: I wanted to try reinstalling it, I deleted the MAMP folder, as I thought that would be sufficient, instead of deleting it in the system settings. Now when I download it again and start the installer it says

MAMP setup has detected existing MAMP installation. You need to remove existing installation before proceeding. Do you want to uninstall it now?

Clicking either yes or no gives me

MAMP setup will now exit and the existing MAMP installation will not be removed.

In the system settings I find

MAMP & MAMP PRO 4.1.0 version 4.1.0 (1.47 GB)

When trying to uninstall it it gives me this error

Windows cannot find 'C:\MAMP\unins000.exe'. Make sure you typed the name correctly, and then try again.

Is there any way, other than reinstalling my whole OS, to solve this problem or do I have to turn to a different web server app?

I just encountered this problem and I hope my solution works for you as well:

Just download the .exe file into another device and install the MAMP.

After a successful installation, just copy the folder to your original device that has the problem.

And then you should find a file with a name starting with "uni" meaning it is for uninstallation. Just run that file and then everything should be fine!

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