The SVCHOST bug is a rare issue that is only found in some Windows XP systems. This bug causes the CPU usage of the process "svchost.exe" to go as high as 100 percent. While there are a few online fixes available, none of them seems to work that well and of course none of them were official.
In last few years, Microsoft made several attempts to resolve this unusual issue, but could never locate where the bottleneck was. However, after the January 2014 Patch Tuesday update, which brought several improvements to Windows XP, Windows 7 and Windows 8, the infamous SVCHOST bug has finally been resolved. Confirming to WindowsITPro, Dustin Childs, the group manager of Microsoft Trustworthy Computing, stated that this issue was resolved by depreciating legacy security updates for Internet Explorer.
