Hi,
1) Did you purchase Office 2013 perpetual license or Office 365 subscription copy?
2) What is the default browser you are using?
3) What are the steps did you try to install Office 2013?
Step 1:
Use the Microsoft Fixit tool to remove the older version of Office installed on the computer from the following article.
http://support.microsoft.com/kb/971179
Note: In case you are using a 64-bit operating system, save the fixit tool on the system and then run it from the saved location.
Ensure you have the disc/download link and the product key to re-install Office.
Step 2:
Run the automated troubleshooter from the following article to remove all traces of the new Office installed on the system.
http://support.microsoft.com/kb/2739501
Once the uninstallation is complete reboot the system
Note: If you are using a 64-bit operating system, save the fixit tool on the system and then run it from the saved location.
Step 3:
Boot the system in clean boot and then try to install the Office 2013 program and check:
Clean boot is performed to disable all startup programs and 3rd party services on the machine and check if they are conflicting with the Office installation.
Restart the computer in Windows Clean Boot and then try to install Microsoft Office 2013 program. Refer the following article on ‘How to restart the computer in Clean Boot’:
http://support.microsoft.com/kb/929135
Note: Ensure to restart the system back to Normal mode after installing the Office 2013 program in clean boot.
You may also refer to the general troubleshooting steps mentioned in the article below while installing Office 2013:
http://support.microsoft.com/kb/2822317
I hope it helps. Let us know if you need further help.
Thank you.