My PC Is So Slow. Why?
The first step to fixing a slow PC is to verify that your machine is the actual source of the problem.
Video buffering and skipping, websites that take a long while to download, and program not responding are typical of an overtaxed system. However, the culprit may not necessarily be the fault of the PC alone. Determining the root cause of the problem is the first step to take (PC Pitstop's free scan can help diagnose the difference between a problem with the PC or poor broadband connections.) Run a Free Performance Scan
If the culprit turn out to be your PC, make sure you have enough free space on the C-drive. Windows has come a long way in the past few years,but it still needs adequate room to efficiently create files while your system is running. If your hard drive is maxed out, performance suffers big time. You can easily check this by clicking on Start Menu>My Computer and reviewing the status of the "Local Disk (C). If the Local Disk is listed in RED, you have very limited free space. There is a high probability that this in the problem.
1)Try to clear some space on your hard drive. Delete or transfer files from the Local Drive to an external drive (movies, large files,
Microsoft’s System Configuration tool is your next-best bet for tackling slow performance. Many applications launch automatically when your machine boots up, which can stretch out boot time—especially on older, slower PCs. Open the tool by pressing Windows-R, typing "msconfig", and then the Enter Key.
3) Try using tools you already own (under programs > Administrative Tools > Defragment & Optimize drive (or Disk Cleanup). These tools work great. You can also try a 3rd party application like CCleaner to help eliminate unwated files and clear up disk space. Run a Free Performance Scan