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Does your computer hang up on the welcome screen for a long time? According to Microsoft knowledge base article if you set a solid color background instead of a picture or a wallpaper, your system will hang for 30 seconds during the logon process. It is a limited yet huge problem.
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Instead of having to fix it manually using the guide, Microsoft has provided a small Hotfix which you can grab from the link below.
Download Hotfixhttp://support.microsoft.com/hotfix/KBHotfix.aspx?kbnum=977346&kbln=en-us
You will see the x86 version of Hotfix if you are using Internet Explorer(32-bit) or any other browser. To download the 64-bit(x64) version of Hotfix you will have to visit the above link using Internet Explorer(64-bit).