Background Installation Error Ran Into a Problem Office 2016 office 2019 office 365 Background installation ran into a problem in Office 2019 and other versions of office commonly occur because of an existing installation of MS Office pack in your computer system. Hence it is also called as Multiple copies of office installed error.Please note that this error is relevant to all the editions of Microsoft Office 2016, office 2019 and Microsoft Office 365. This can occur in the below-enlisted versions of the MS Operating System Reasons for This Background Installation Ran Into a Problem (Office 2013, 2016, 2019):- There are several possibilities for background installation ran into a problem error when attempting office 365, office 2013, office 2016 installation. Slow internet connection File system error in your machine Firewall/antivirus blocking office program windows update errors Slow Internet Connection:- While your machine is installing office software online, you need to have a good internet speed.How ever, sometimes it shows error message like Office is taking too long to install because of internet speeds. The better way to overcome this problem is, First restart your computer if it is stopped at 90% level and do check if office program already installed. If it is not installed, then download an exe file for offline installation of office software by log into your Microsoft account.