When installing on a Windows7 box, the installer insists that I have already open LibO 3.5 and promptly exits the routine. I have downloaded a second copy of the installer, to no avail, and I've uninstalled version 3.4. I was able to install LibO 3.5 on a WindowsXP laptop without problems.
DUP of "Bug 36677 - Uninstall Problems with MSI on Windows 7 64bit"? @reporter: please check and complete your bug report! May be hints on <http://wiki.documentfoundation.org/BugReport> will help you to find out what information still is needed?
Andras, does it trigger any bell? If I understand it correctly, the reporter was able to install LO-3.5 after uninstalling LO-3.4. AFAIK, it is not a general problem. It might be caused by some strange state of the system => it should not block the next release => lowering the severity a bit.
Reporter did not answer, so we should simply close this one. We had some issues that the user had to use an uninstall tool to remove 3.4.4 before he was able to install 3.6, may be reporter has the same problem. So closing. @Reporter: Please feel free to reopen this bug if you find out that the problem still exists with the current stable LibreOffice version and if you can contribute requested additional information (especially: 34 bit? Update from 3.4.4 to 3.5?) due to <http://wiki.documentfoundation.org/BugReport> (especially BugReport Details)!