svchost.exe High CPU usage 98% of at least one CPU.

Looks like website issue might have to get it from the catalog
Microsoft Update Catalog

Okay your path is wrong. "Full path to" is meant to be replaced with the full patch to the downloaded installer. You can get the path by "Shift+right clicking" on the installer file then choose "Copy as path"

Paste that path into this command line:

start /wait "" "%SystemRoot%\system32\wusa.exe" "Full Path To" /quiet /norestart

Replace Full Path to with the copied path but include one set of quotes.

As for DavidE's suggestion - I was coming to that but personally I reckon it's best to go through the other steps first.

DavidE said:

Install KB3161608, it has a fix for Windows Update Client
https://support.microsoft.com/en-us/kb/3161608

I reckon it's best to get the other updates sorted out first but who knows. On my home based machine that update installed in less than 5 minutes but on my work based machine it took more than an hour for the reboot to complete.

Isn't it also required to check that KB3020639 has been installed before going ahead?

Download KB3020369
https://support.microsoft.com/en-us/kb/3020369

and KB3161608
https://support.microsoft.com/en-us/kb/3161608

.

ThrashZone said:

Looks like website issue might have to get it from the catalog
Microsoft Update Catalog

Ditto on that. I've downloaded it from there twice now. Note: Need to use Internet Explorer to download.

Here are link for use with Internet Explorer:

Microsoft Update Catalog

RE: KB3161608

Can't find the update currently it does not seem to be available.

RE: https://support.microsoft.com/en-us/kb/3161608.

I've seen this happen before. Suggest checking again in a few hours or even wait until tomorrow to see if it becomes available for download again.

Callender said:

I've seen this happen before. Suggest checking again in a few hours or even wait until tomorrow to see if it becomes available for download again.

Reference to previous download an update issue:

Is it me or why i can't download KB3135445 manual update?

It works for that one now. But it's not the update required in this case - just posted as an example.

Nope looks as though KB3161608 has been replaced,
https://support.microsoft.com/en-us/kb/3172605
Downloads are not live yet so try tomorrow or later tonight :/

ThrashZone said:

Nope looks as though KB3161608 has been replaced,
https://support.microsoft.com/en-us/kb/3172605
Downloads are not live yet so try tomorrow or later tonight :/

Cheers! Possibly still need to install https://support.microsoft.com/en-us/kb/3161608 first.

Sorry I meant possibly install this one first: https://support.microsoft.com/en-us/kb/3020369

Will have to test it tomorrow.

Logic is:

kb3020369 required before installing pulled update kb3161608 so I guess that kb3020369 is still going to be required before installing the replacement for kb3161608. I could be wrong!