How to fix slow computers?

Computers are the electronic devices that are used in every areas like in schools, in offices, in colleges, in shopping malls, gardens, etc. That's why a fast and reliable computer is very much needed in everyone's daily lives. Sometimes, computer becomes slow due to opening of several applications at a time, viruses, etc. We can fix this problem by uninstalling used apps, deleting temporary files, installing a antivirus program, stopping unnecessary start ups, and many more.

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