Why can't I update?

While updating to 5.4.2 my existing libre was deleted and it will not install 5.4.2. Something about not have SYSTEM permission. I am the administrator and have never had this issue before.

It would be useful to give more information. For example: What system are you using, which language, what was your previous version, did you remove this before attempting an update, have you updated the system between LibO versions, how did you install the previous version of LibO? This will allow us to provide more relevant help.

System: Dell Inspiron 537S
Language: English
Prev Language: English
Prev Ver.: 5.4.11.?
Did I remove Prev Ver.: No
Had I previously updated: yes
How ldid I install prev Ver: Went to update page from check for updates and downloaded

How I resolved: Located and Deleted all Libre folders. Ran install LibreOffice_5.4.2_Win_x64.

I had some difficulty deleting Libre folders. Had to rename them before they could be deleted.