Most of these fixes require editing the registry. Some users may find it bit difficult, but by carefully following the instructions and backing up the registry before modifying, you can easily solve most your computer problems. More details about Microsoft Fix it Solution Centre [via]
The idea behind the Microsoft Fix it Solution Center is to automate the steps in Microsoft Knowledge Base (KB) articles and Windows Error Reporting (WER) solutions so you can click a button and have the issue resolved. For example, when you connect a new USB device to your Windows XP or Windows Server 2003, if your computer failed to detect this new device, you can use this solution center to browse and fix the problem.