Unfortunately for users of some Logitech-branded mice, the update to macOS Sierra has broken compatibility, and has caused a series of issues in their accessories. If the error still appears after clearing up some space, then try installing macOS Sierra in Safe mode. So get rid of all the junk files and delete unnecessary files and apps. You have to make sure that you have at least 8GB of free space available on your Mac.

It can be annoying if your macOS Sierra installation is interrupted just because you don’t have enough space to install the new operating system. If your Mac freezes while installing macOS Sierra or the installation crashes, then there are a few methods to fix this annoying problem. macOS Sierra Installation Freezes or Crashes If these two have no issues then you can try deleting your WiFi preferences and start afresh. Some users have reported that webpages, including downloads, load very slowly after upgrading to macOS Sierra.įirstly, you have to ensure that there are no issues with your router and that your ISP is providing a proper internet connection. Internet connection and Wi-Fi problems are the most annoying issues anyone could face while using a new operating system. One way to fix it is to delete the “Install macOS Sierra” file from Launchpad, reboot your Mac and download the macOS Sierra file again. If you see this error while attempting to download and install macOS Sierra, it means that the file is either corrupted or was interrupted during download. “This copy of the Install macOS Sierra.app application is damaged, and can’t be used to install macOS” Error Once you’ve removed the installer files, go back to the Mac App Store and you should be able to install the final version. To be able to download the final version of macOS Sierra, you have to remove any existing “Install macOS Sierra” installer files from your Mac or from a connected hard drive. If you go to the Mac app Store and see that macOS Sierra is shown as “Downloaded”, then it means that you either have installed the beta version or the GM build.

Mac App Store Shows macOS Sierra as “Downloaded”

Delete this file, reboot your Mac and retry the download process. To do so, open Launchpad and you should see the half-downloaded “Install macOS Sierra” file with a question mark on it. To fix this issue, you have to delete the existing macOS Sierra installer and re-download it. The solution is quite straightforward and easy to tackle. This is a common issue that many users face while upgrading their Mac to a new operating system.

Logitech control center 3.9.4 for mac