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1. Got these warnings - see below - please advise - thank you:

Sun 07/17/2016 20:56:41.49 - Warning: Update kb3045999 (id: e1107158-3e97-4c23-801c-ede494f9df4a) not found
Sun 07/17/2016 20:56:41.49 - Warning: Update kb3122656 (id: 428c2fef-afe5-46a7-a454-da2fa0e3af27) not found
Sun 07/17/2016 20:56:41.49 - Warning: Update kb3127229 (id: 8f49f137-0741-498e-9f7c-754862054221) not found
Sun 07/17/2016 20:56:41.49 - Warning: Update kb3135996 (id: e71684aa-32c2-4f6a-91d6-23b9ceead395) not found
Sun 07/17/2016 20:56:41.49 - Warning: Update kb3114414 (id: d3748713-6e6d-4687-9da6-36c116f62f07) not found
Sun 07/17/2016 20:56:41.49 - Warning: Update kb3142033 (id: eac1599f-2887-40ce-9cf4-0f364dc37343) not found
Sun 07/17/2016 20:56:41.49 - Warning: Update kb3162593 (id: 3dbae6fb-1a34-45d1-b199-dd05ebfe833b) not found
Sun 07/17/2016 20:56:41.49 - Warning: Update kb3115246 (id: 161a6209-5020-497d-b828-800a63049d9e) not found
Sun 07/17/2016 20:56:41.49 - Warning: Update kb3163251 (id: 7b053e5b-04a5-4f47-92c5-74f6caba0de7) not found

2. Getting a lot of Error 87 - see below - please advise - thank you:

Sun 07/17/2016 21:07:16.77 - Warning: Installation of ..\w61-x64\glb\windows6.1-kb2871997-v2-x64_e0df325c3a4fe7759e2e2858a6e80c8acb03ed10.cab failed (errorlevel: 87)
Sun 07/17/2016 21:18:18.16 - Warning: Installation of ..\w61-x64\glb\windows6.1-kb2676562-x64_ef1435c87d5e42d6866549733e10b5df59b48990.cab failed (errorlevel: 87)
Sun 07/17/2016 21:29:19.47 - Warning: Installation of ..\w61-x64\glb\windows6.1-kb3011780-x64_d9ad4ad4f9c4dfcc785b4a7420a3b56c9f86689b.cab failed (errorlevel: 87)
Sun 07/17/2016 21:40:20.82 - Warning: Installation of ..\w61-x64\glb\windows6.1-kb3004375-v3-x64_106d506f0b146279985ca204a0abf70423e00c68.cab failed (errorlevel: 87)
Sun 07/17/2016 21:51:22.09 - Warning: Installation of ..\w61-x64\glb\windows6.1-kb3033929-x64_5b2988b4619138769d347e12aec350c2cf4db4cd.cab failed (errorlevel: 87)
Sun 07/17/2016 22:02:23.39 - Warning: Installation of ..\w61-x64\glb\windows6.1-kb3046269-x64_a26f42ec6c4508c07f4a037987df9e2beb7e8d2d.cab failed (errorlevel: 87)
Sun 07/17/2016 22:13:24.64 - Warning: Installation of ..\w61-x64\glb\windows6.1-kb3031432-x64_b946b1120f6a63e5a0614047d1c7308ef0743739.cab failed (errorlevel: 87)

Please check, if a process named "TrustedInstaller" is running.

Windows Module Installer (Trusted Installer) is stopped. Startup type set to manual. Does it need to be started?

No, was just an idea. Then please try the following:
Delete c:\Windows\Logs\DISM\*
Run wsusou.
As soon as the first update failed, copy DISM.log (from the path above), upload it somewhere and post the link here.