Disabling QoS to Free Up 20% of Bandwidth
This tip made the rounds with people believing that Microsoft always allocates 20% of your bandwidth for Windows Update. According to the instructions, you were supposed to disable QoS in order to free up bandwidth. Unfortunately this tip was not only wrong, but disabling QoS will cause problems with applications that rely on it, like some streaming media or VoIP applications.
Rather than taking my word for it, you can read the official Microsoft response: (http://support.microsoft.com/kb/316666) "There have been claims in various published technical articles and newsgroup postings that Windows XP always reserves 20 percent of the available bandwidth for QoS. These claims are incorrect... One hundred percent of the network bandwidth is available to be shared by all programs unless a program specifically requests priority bandwidth."
http://lifehacker.com/5033518/debunking-common-windows-performance-tweaking-myths
This tip made the rounds with people believing that Microsoft always allocates 20% of your bandwidth for Windows Update. According to the instructions, you were supposed to disable QoS in order to free up bandwidth. Unfortunately this tip was not only wrong, but disabling QoS will cause problems with applications that rely on it, like some streaming media or VoIP applications.
Rather than taking my word for it, you can read the official Microsoft response: (http://support.microsoft.com/kb/316666) "There have been claims in various published technical articles and newsgroup postings that Windows XP always reserves 20 percent of the available bandwidth for QoS. These claims are incorrect... One hundred percent of the network bandwidth is available to be shared by all programs unless a program specifically requests priority bandwidth."
http://lifehacker.com/5033518/debunking-common-windows-performance-tweaking-myths