Can't install latest update

Tried to install latest update (LibreOffice_6.0.6_Win_x64), but I get error message that I should log on as adm. I am the adm. But can’t proceed. It has erased my last version. How do I install the update?

have tried to update-all. The website offered 6.06 update for Windows.
The install package announced, it requires Windows7. Same as Microsoft. Why to bother?

LibreOffice Write: Once you have 5 pages with pictures, the Write is damn slow, responding is seconds. Then the shitty tracking changes option can’t be disabled. The spellchecker dictionary needs a face lift with normally used English words.Absolutely best was web login OpenOffice.org, offering me Dutch language. Enough!!!

Please read the installation guide.

What is your OS?

Windows 10, but the installer never came up, so couldn’t “right click.” Only the Installer Wizard appears and that goes right past any right clickable window.

I went to the original program files and tried to change unset the read-only property as the administrator, but it would not allow me to unset it.

Go to the installer but instead of double clicking on it, right click instead. If I recall correctly, there should be an option similar to “Run as admin” Sometimes Windows seems to have a different understanding of Admin.

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Windows 10, but the installer never came up, so couldn’t “right click.” Only the Installer Wizard appears and that goes right past any right clickable window.

I went to the original program files and tried to change unset the read-only property as the administrator, but it would not allow me to unset it.

Windows 10. As to the first suggestion, the Installer Wizard comes up, but there is no separate installer menu or page that pops up that responds to a right click.

I went to the original program files and tried to change unset the read-only property as the administrator, but it would not allow me to unset it.