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Guide: How to keep your Windows computer running like new
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<blockquote data-quote="dullonien" data-source="post: 565048" data-attributes="member: 13739"><p>I'm guessing it picked up a lot of registry errors? In my experience when running a registry cleaner such as CCleaner on a system that's a few years old, the first scan finds hundreds, if not thousands of errors.</p><p></p><p>It might be interesting to some as to why this slows a system down, especially the boot process. In a very simplified way, the registry basically tells Windows what to do. When a new program is installed, a number of registry entries are created to tell Windows how to control the program, informing it of new file types etc. etc. When a program is uninstalled, many of these registry entries are just forgotten about and left, but Windows still tries to deal with them, wasting time.</p><p></p><p>Using a poor analogy, imagine the registry as a notice board full of post-it notes, reminding you to do all of your daily activities as your memories are wiped every night as you sleep. Every day you must go through them all one by one completing the tasks set out. One day you stop doing one of these activities, but forget to remove the post-it note reminding you do said activity. The next day you read the note telling you to do this cancelled activity, and automatically go to do this, only to find out that the tools required are gone, so you then skip it and go onto the next post-it note. This is kinda what happens wit the registry, there might be an entry telling windows to load a certain program that has been removed, so Windows wastes time looking for that program before skipping it. This might only cause a very slight delay, but it adds up when there are hundreds, if not thousands of errors.</p></blockquote><p></p>
[QUOTE="dullonien, post: 565048, member: 13739"] I'm guessing it picked up a lot of registry errors? In my experience when running a registry cleaner such as CCleaner on a system that's a few years old, the first scan finds hundreds, if not thousands of errors. It might be interesting to some as to why this slows a system down, especially the boot process. In a very simplified way, the registry basically tells Windows what to do. When a new program is installed, a number of registry entries are created to tell Windows how to control the program, informing it of new file types etc. etc. When a program is uninstalled, many of these registry entries are just forgotten about and left, but Windows still tries to deal with them, wasting time. Using a poor analogy, imagine the registry as a notice board full of post-it notes, reminding you to do all of your daily activities as your memories are wiped every night as you sleep. Every day you must go through them all one by one completing the tasks set out. One day you stop doing one of these activities, but forget to remove the post-it note reminding you do said activity. The next day you read the note telling you to do this cancelled activity, and automatically go to do this, only to find out that the tools required are gone, so you then skip it and go onto the next post-it note. This is kinda what happens wit the registry, there might be an entry telling windows to load a certain program that has been removed, so Windows wastes time looking for that program before skipping it. This might only cause a very slight delay, but it adds up when there are hundreds, if not thousands of errors. [/QUOTE]
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Guide: How to keep your Windows computer running like new
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