Download the System Update Readiness Tool (x64) and save it to some place, its a big download and eventually we need to run it several times, please keep the file
Run the tool. Its like an Update but it can take a long time to do the work. You will get an Installation Complete screen when it's done running
Please attach to your post the log from the following location: C:\Windows\Logs\CBS\CheckSUR.log
Note: If the file is too big please Zip it and upload the ZIP file to a service like Dropbox, Google Drive, One Drive or upload to SendSpace and just provide the link for the file here.