The installer encountered an unexpected error 'Error 2755' [Solved]

Windows Troubleshooting
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Originally published at: The installer encountered an unexpected error 'Error 2755' [Solved]

The error with code 2755 when trying to install something via Windows Installer states that the server returned an unexpected error when attempting to install a package. Into plain English, it means that there is a serious error with your attempt of installing the software and you will most likely fail to do so. You…

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try to log deselect “Hide protected operating files”

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Create a new administrative account on the computer and check to see if the issue persists.

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Thanks…this page was a big help!

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When I tried step 1, even though there was no folder named ‘Installer’, it kept saying the folder exists. So I skipped and went ahead to step 2. It worked!
Thanks

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are you logged in as the administrator?

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The first option worked… thanks for being the lifesaver :slight_smile:

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Doesnt work, im trying to install Oldschool Runescape, please help :frowning:

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I tried to make a new folder as stated in method one, but every time I try to make the folder it inexplicably disappears… I click new, folder; I label it “Installer” and as soon as I click anywhere else on the screen it’s just gone! Like it was never created or something… Do you know what’s up with that?

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The same for me.
Thanks to author of the topic.

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Create a new administrative account and check to see if it fixes the issue.

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Create a new administrative account and check to see if solves the issue

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Sitting with the same problem . did you get yours sorted ??? Trying to install Epic Games

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Hi there i am using Windows 10
I did all you said, but when i go in windows folder to create Installer folder… it just disappear after i named it installer
I also did all the other steps and still nothing
I am trying to install Epic Games

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None of the solution from google solved my problem with 2755 error.
I ended up solve it by just copy over the installer to “c” drive and run it there.

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Nothing works for me

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are you logged in as the administrator?

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Tried step 1, I made the folder and It didn’t give me any errors the folder just disappeared. I’m on windows 10. When I try to set the windows folder’s permissions to ADMINISTRATOR It says I don’t have permissions to almost half of it and still won’t let me install anything or make the new folder.

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Damn thanks, I previously deleted the whole Installer folder cuz it was taking a lotta space

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Thank you very much! Method 3: Add the SYSTEM user in the installer HELPED!