When deploying the Windows 10 April 2018 Update (1803) via SCCM the update fails to install with error 0x87D0070C.
In Event Viewer you see the error “Installation Failure: Windows failed to install the following update with error 0x800704C7: Feature update to Windows 10 (business editions), version 1803, en-gb.”
The error is caused by the default maximum run time setting in SCCM of 60 mins, which in this case is insufficient for the update to install and it times out. To increase the timeout value, find the update within the Software Updates section of SCCM, right-click on the update and select properties.
Increase the value to something like 240 mins and click OK.