The computer has to remember a lot of things – hardware attached, selected system options, applications around, etc. Each time you use it, it has to go through all of these entries. However, there may also be invalid, missing or double entries. Such can be caused by anything from removing a hardware previously attached, to deleting a file or program.
When such happens, you will notice that the PC will begin to work a lot slower than before. Although it goes through all these entries in a very fast manner, still it may take some time if there’s too much to read. Eventually, you will also notice certain programs will refuse to run, and system crashes will surface more frequently.
Of course you can always take your computer to an expert to have all unnecessary entries removed. However, it may come with a steep price tag. What’s more, it’s supposed to be done periodically to keep your computer in tip-top shape. Doing it on your own is definitely not recommendable, as you can even cause some irreversible damages.
What you can do is to install and run registry cleaner software. This will automatically examine each of the entries made from day one. It removes safely and effectively those which are already invalid, missing or were recorded twice. This is a much safer way for you to do so, instead of attempting to manually remove entries which can cause the PC problems.
You may scan and fix registry using free software you may find online. In downloading them, carefully read the system requirements so you’re installing something that will work…