Error – Office product Couldn’t install

Asked By 20 points N/A Posted on -



I have installed Office 365 on my system. I preferred to use Office 2010 professional with my Office 365 but when I attempted to install it, an error message appeared “Couldn’t install”. I tried to re-install this product but same error message displayed. Any help would be appreciated.




We’re sorry, but we can’t verify the signature of files required to install your office product.

We need to verify these signatures to keep your computer safe.

Please retry installing your product or, if installation continues to fail, try re-downloading your installer if you got it online. Make sure you only download office products from a trusted source. 

Answered By 0 points N/A #183224

Error – Office product Couldn’t install


Hi Thomas,
The error has occurred because some of the Internet files are restricting the installation of Microsoft Office.
The solution to this error is:
1) Click 'Start', Go to 'Control Panel
2) Open 'Internet Options'
3) In the 'General' tab, Click 'Delete' under the 'Browsing History'
4) Select the 'Temporary Internet Files' check box
5) Select the 'Preserve Favorites website Data' check box if you do not want to delete cookies and files associated with the website
6) Click 'Delete'

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