What do you mean? Like when you use search or do you mean files and folders? Can you take screenshot of what you mean? Looking back you have had several viruses which may have introduced some corruption. Why not try running a sfc scan? Open an admin command prompt and type: sfc /scannow Press enter and await results. You could also try removing currently installing applications and see if the pc speeds up a little. How much space is on the HDD? If it isn't much then that can also have an effect. Try running the Eset scan I link to a few posts ago. This will check your pc for viruses.