When I try to install LibreOffice 3.6.3 on Windows 7 64-bit it fails with the installer giving a message about being interrupted before completion and stating that my system has not been modified.
Looking in the Event Log I find a message that states the following:
Windows Installer installed the product. Product Name: LibreOffice 3.6. Product Version: 3.6.3.2.
Product Language: 2057. Manufacturer: The Document Foundation. Installation success or error status: 1602.Hi @copmill, This sounds like it could be a bug. Please file a bug about this problem. The QA team will be happy to help you track down this issue! Thanks!
I found the same problem with the version 4.1.0.4 on win7 64 bit. (error 1602 in applications events)
I solved it by disabling antivirus software (was kaspersky).
hope this helps
Michele C.
Hi @copmill,
We’ve got a new 4.0 version of LibreOffice. Please try installing/running the latest release and see how that works for you 
If you get the same errors when trying to install LO 4.0, please file a bug and provide a list of steps that can reproduce your problem. The QA team will be happy to help you track down this issue!
Please post a link to any bugs you file in a comment below using the format “fdo#123456”.
Thanks!