You may encounter Office error code 30175-12 (30) while installing, repairing or updating Office 365, 2013 or 2016. Please follow the below steps carefully to fix the Office error code 30175-12 (30) problem.
NOTE: Bookmark this webpage or open in another computer as we need to reboot the computer.
To delete files using Disk Cleanup
box, type Disk Cleanup, and then, in the list of results, click Disk Cleanup.
file types that you want to delete, and then click OK.
Run system file checker: sfc /scannow
The tool will appear like below pic, click next and tool will remove all the leftover files from the previous installation. Also, if you are on wifi network please switch to wired network (Connecting LAN cable)
Once the tool finishes, reboot the computer if tool ask for reboot.
Now, the Office error code 30175-12 (30) problem have been fixed. If you still cannot install Office and get Office error code 30175-12 (30) or any other error code please contact us as this problem needs expert help.
NOTE: If the problem still hasn’t fixed or if you encounter a different error please contact us for live help.
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