I recently refreshed my PC and newly installed Windows 8.1. After that I noticed the 100% Disk- and Memory-Usage. Then with the following commands I fixed the problem:

```
SFC /scannow
DISM /Online /Cleanup-Image /CheckHealth
DISM /Online /Cleanup-Image /ScanHealth
DISM /Online /Cleanup-Image /RestoreHealth

```

But now, a day later, I booted the PC and the Problem showed up again.
I don't know how to prevent this from happening. I can't always do these commands after boot, this takes too long.

Hope you can help and thanks in advance.

EDIT:
I forgot to mention that in the Task-Manager the "Service Host: Local System" is using a lot of memory.