Sparewise

Why is my PC slow? An honest answer

Short answer: Usually one of four things: a nearly full drive, too many programs starting with Windows, a restart waiting for an update, or memory that is really short. "RAM boosters" and registry cleaners do not fix any of these.

By hand, with Windows' own tools

  1. Free space if the C: drive is over about 90% full.
  2. Turn off startup apps you do not need: Settings > Apps > Startup.
  3. Restart if an update is waiting.
  4. Check Task Manager > Performance > Memory: if it stays near 100%, close heavy apps or add RAM.

With Sparewise

Questions

Do RAM cleaners speed up a PC?

No. Windows manages memory itself; emptying it only makes apps reload.

Does a full drive slow down Windows?

Yes, when it is nearly full: Windows Update, search and the page file all need free space.

Get Sparewise, free

Get it from the Microsoft Store   or download the installer

Free · Windows 10 and 11 · No account · No telemetry · Everything it removes can be put back

More guides: all guides