Hello, having issues getting update to run on a dual boot system. All updates work okay until windows update installs newest update for Windows updater itself (only on the 2nd time it does so)-> it asks to install newest windows update software itself, which seems to succeed, then goes on to check for actual system updates after and hangs at checking for updates. Tried running SURT and SFC fix to no avail. If I run SFC fix, get MSVCP100.dll missing, and it skips registry scan. Tried running as admin and installing C++ package that may correct for that file missing before hand (from research about MSVCP100.dll missing search on google) . If I run the troubleshooter I get two "problem installing window updates" successful fix, "service registry missing or corrupt" successful fix, and windows update error 0x80070057 (2016-07-01-T-12_03_27A) not fixed. Have tried installing windows fresh 3 times to no avail. Always messes up after 2nd install to the windows update itself. Any help is greatly appreciated. Thanks. It is windows 7 pro x64 on GPT partition with windows 10. Need windows 7 for usb to serial driver for hvac controller, otherwise wouldn't dual boot. Cannot get SFC fix to find any issues, also have tried sfc /scannow with no issues as well.