Windows 7: svchost.exe -k netsvcs Slowing Down Computer

I would suggest downloading and installing the older updates first. Sometimes older updates are needed to be able to download newer updates. Download about 3 at a time and reboot. This will allow you to see if those updates work okay with your system. It takes time to do it this way but it has always worked for me.

Try putting some of the shared services that can be involved in the process into their own svchost processes. Open an elevated cmd prompt and type the following commands, pressing ENTER after each one to execute the commands:
Hopefully after you've done this in that elevated cmd prompt, this is what you should see:

Once you've done this and have success executing the 4 commands, reboot your machine and see if that makes any difference.

Read through these links carefully please.

Windows Update - Reset

How do I reset Windows Update components?

Windows Update Settings - Change

I have scanned it in safe mode and it caught no viruses.

I realized that my svchost was taking up my CPU when I checked task manager and process explorer after slowdowns after start up.

I'll check out Puran and other processes to see if I can speed up my computer, but I still feel that it'll be slow. I think it has something to do with broken/missing files.

I am.
Every update worked except the Service Pack 1 (KB976932).

I'll try that.

I have resetted Windows Update and downloaded most of the necssary updates. But Windows service pack 1 is causing trouble for me.

Please explain the problem SP-1 is giving you. The reason I ask is because SP-1 does take about a hour to download and install. You should do nothing on your computer unless it ask you to and it might ask. That is why you must stay with your computer.

I downloaded SP-1, and then restarted my computer so that it may install.
An hour or so later, it's finished. My comp shuts down for a second, then starts back up. It says that it's configuring the updates with a percentage of completion. It reaches about 44%, then stays there for a long time. Eventually, it says that it has failed, so it will revert the changes. It stays on this screen until I hold the power button down and boot the comp until it allows me to access my account.

It never properly configures.

* Did you receive an Error Message with your failed SP1 configuration?
If so we need it please.

* If NO Error number available have you checked in Event Viewer?

Type eventvwr in search.

Go to the Windows Logs > Application / System > in the left hand column.

Note anything in red related to the SPI problem.{same time /day}
Please record the event ID, and the Source Code and tell us what they are.
Note we only require details pertaining to SP1.

* Did you run the System Update Readiness Tool before downloading SP1?

32 Bit

Download: System Update Readiness Tool for Windows 7 (KB947821) [February 2012] - Microsoft Download Center - Download Details

64 Bit

Download: System Update Readiness Tool for Windows 7 for x64-based Systems (KB947821) [February 2012] - Microsoft Download Center - Download Details

It told me that it had failed to configure changes, and that it would revert them.
I can't check the code because I can't remember the time...
But I'll try the Readiness tool tomorrow and see how that goes.

Alright, I had downloaded SP1 and ran into the same exact problem as before, despite downloading SURT.