Your computer is probably clogged up by a plethora of spamming software that starts every time you turn it on. So-called startup programs can really slow down your computer and you likely don't even realise they exist. When you install software it will often set itself to run when your computer starts, which isn't always necessary. Removing unwanted startup programs is easy.
Press the Windows key and R to open the Run window, type msconfig and hit Enter. The System Configuration window that opens lets you change which programs run at startup. Click the Startup tab and you'll see a long list of everything that runs when Windows starts. It is important not to mess around with this list too much as some programs do need to run as Windows starts – your antivirus software, for example.
Scroll through the list and remove any programs that aren't necessary or needed. Common candidates may include BBC iPlayer or iTunes. Select the tick-box to deselect them and then click OK. You'll then see a window asking you to restart your computer. If it is convenient to do so now click Restart or select 'Exit without restart' to do this later.
In Windows 8 and 8.1 right-click on the Taskbar and open Task Manager. Click Startup then select a startup program you want to remove and click Disable. You can also right-click on each program you want to remove and click Disable this way. As we said before do not disable any startup programs unless you sure they're not important.
