Best way to speed up my windows 10 pc as running very slow

CRITICAL "What NOT To Use" List if you are planning to speed up Windows 10 PC :

"All-in-One System Optimizers" (PC "Boosters," "Optimizer Pro," etc.): Almost always junk. They promise magic fixes but install adware, make dangerous registry "optimizations," and use scare tactics.

"Registry Cleaners": Modern Windows doesn't benefit from this. The risk of breaking your system far outweighs any microscopic, theoretical gain.

"RAM Optimizers/Boosters": These are scams. Windows already manages RAM efficiently. They create a placebo effect by forcing cached data out of RAM, which actually slows you down when you need that data again.

The Most Effective Tricks Are Manual:

1. Search "Storage Settings" > Configure Storage Sense or run it now – Automates cleanup.

2. Search "Background apps" – Turn off background activity for apps you don't need.

3. Search "Indexing Options" > Modify – Remove folders you never search (like game libraries) to reduce disk I/O.

4. In Task Scheduler, review the \Microsoft\Windows tasks and disable unnecessary ones (like scheduled telemetry tasks). Research before disabling. In this way you are allowed to speed up Windows 10 PC.