Pre-release or beta Office products are stopping Office 365 installation. How can I tell which Office products are pre-release or beta?

first of all this issue needs to be taken care of by going through various steps;

follow the below steps, hope  that helps.......

Office 2013 manual uninstallation steps from KB 2739501

Step 1: End the Click-to-Run tasks from Task Manager

1.     Open the Task Manager.

2.     Click the Process tab, if the following processes are running, right click it, and then select End Process. In Windows 8, select End Task.

o    integratedoffice.exe

o    appvshnotify.exe

o    firstrun.exe

o    setup*.exe

Step 2: Remove the remaining Windows Installer packages

Open the Office 15 installation folder. By default, the folder is located at C:\Program Files\Microsoft Office 15\root\integration and then delete all the C2RManifest*.xml files, such as c2rmanifest.officemui.msi.zip.en-us.

Step 3: Remove the Office 2013 scheduled tasks

1.     Open command prompt as administrator

2.     At the command prompt, type the following commands and press Enter after each one:

schtasks.exe /delete /tn "\Microsoft\Office\Office 15 Subscription Heartbeat" schtasks.exe /delete /tn "\Microsoft\Office\Office Automatic Update" schtasks.exe /delete /tn "\Microsoft\Office\Office Subscription Maintenance"

Step 4: Remove the Office 2013 service

1.     Open command prompt as administrator

2.     At the command prompt, type the following command, and then press Enter:

sc delete OfficeSvc

Step 5: Delete the Office 2013 files

Open the Run dialog box

1.     type %ProgramFiles%, and then click OK. Delete the Microsoft Office 15folder.

2.     type %ProgramData%\Microsoft, and then click OK. Delete the ClickToRun folder.

3.     type %ProgramData%\Microsoft\office, and then click OK. Delete the FFPackageLockerfile.

4.     type %ALLUSERSPROFILE%\Microsoft\Windows\Start Menu\Programs and and then click OK. Delete the Office 2013 folders.

Step 6: Delete the Office 2013 registry subkeys ( IMPORTANT: Take backup before deleting )

o    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\15.0\ClickToRun

o    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\AppVISV

o    HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Microsoft Office <Edition>15 - en-us

Step 7 : Uninstall the Microsoft Office Habanero Local Component and Habanero Supplemental Local Component

1.     Open an elevated command prompt.

2.     At the command prompt, type one of the following commands, and then press Enter.

o    If you are running an x86 version of Office 2013 on an x64 operating system, run the following command: MsiExec.exe /X{50150000-008F-0000-1000-0000000FF1CE}

o    If you are running an x86 version of Office 2013 on an x86 operating system, run the following command: MsiExec.exe /X{50150000-007E-0000-0000-0000000FF1CE}

o    If you are running an x64 version of Office 2013 on an x64 operating system, run the following command: MsiExec.exe /X{50150000-008C-0000-1000-0000000FF1CE}

Step 8: Delete files from temp folder

Open the Run dialog box. Type %temp%

1.     Delete all the files

Step 9: Restart the computer

this is not helping with me... I ve been trying to fix it for the last 96 hours... and I JUST CANT INSTALL IT!... PLEASE HELP!... IM still receiving the same error! "We found a pre-release or Beta version of an Office product on your computer and can't install because of it"... I cant find any beta version under programs... please help help  help help

I am having all the same problems described above trying to install Office 2013 on a new HP laptop.  I first got the message about there being a beta or preview version of Office on the computer.  When I deleted all Office references in the registry, I then I got the message that it couldn't install because "we weren't able to download a required file." (This in spite of a good internet connection.) In my various attempts to delete prior Office versions I applied the Microsoft fix manual uninstaller and also edited the registry to delete office references.    The message about not being able to download a required file also appeared after I turned the Norton Firewall off.  What is very strange is that after I delete the prior version of Office, I get the not able to download a required file message, and when I then try it again, I get the message about beta or preview versions of Office on the computer; and this happens predictably every time I try a fix.  At this point I have tried every fix described above to get Office 2013 to install, without success.  What now?

Hi,

Thank you for asking this question. As I understand you are facing issue installing the Office 365.

Based on the description it seems like some corrupt installation of a preview or beta versions of Office 2013 are conflicting with the installation of Office 365.

Try uninstalling and the Office using the Microsoft Troubleshooter and then re-install. In case there are any traces of Office 2013 present in the computer, you will not be able to re-install.

Refer this article to remove the Office suite:

http://support.microsoft.com/kb/2739501

Once Office is removed, go this link http://www.office.com/myaccount  to reinstall Office on the same PC.

Hope this helps to resolve the issue. If you need any assistance, reply to us and we are glad to assist you further.

Thank you.

Hi,

Your solution worked excellently. Many thanks.