Windows Network Sharing Service too much cpu

Hello again! That wmpnwk.exe is using an awful lot of CPU. It's at 50! Can I disable this in Services?

PS. Thank you in advance! I'm glad I have TSG to guide me.

Tech Support Guy System Info Utility version 1.0.0.2
OS Version: Microsoft Windows 7 Ultimate, Service Pack 1, 64 bit
Processor: AMD Turion(tm) II P520 Dual-Core Processor, AMD64 Family 16 Model 6 Stepping 3
Processor Count: 2
RAM: 3827 Mb
Graphics Card: ATI Mobility Radeon HD 4250 Graphics, 320 Mb
Hard Drives: C: Total - 150368 MB, Free - 83998 MB; E: Total - 2040 MB, Free - 2026 MB;
Motherboard: Hewlett-Packard, 1455
Antivirus: AVG AntiVirus Free Edition 2013, Updated and Enabled