Can anyone suggest a good pc cleaning software for windows 10?

Microsoft PC Manager is the best free PC cleaning software available on Windows 10.

Developed by Microsoft, this is the "official" way to clean your PC. It is highly recommended because it uses built-in Windows APIs, meaning it won't accidentally delete critical system files.

Key Features

PC Boost: A one-click button that flushes temporary files and terminates non-essential background processes to free up system RAM.

Deep Cleanup: Scans for system logs, web caches, and—most importantly—leftover Windows Update Cleanup files that can often take up several gigabytes of space.

Startup & Process Management: A simplified version of Task Manager that allows you to disable startup apps and end high-resource processes without leaving the app.

Pros

Safe and Native: Since it is made by Microsoft, it uses official Windows APIs. It is much less likely to delete a critical system file or break your OS compared to third-party "cleaners."

Completely Free: There are no "Pro" versions, hidden subscriptions, or locked features.

Zero Bloatware: Unlike many competitors, it does not bundle unwanted software or bombard you with ads for third-party products.

Cons

Redundancy: Almost every feature (except for the Pop-up Blocker and Toolbar) already exists elsewhere in Windows 10/11; it just puts them in one place.

Basic Depth: Power users may find the "Deep Cleanup" less thorough than specialized tools like BleachBit, which can scrub much deeper privacy traces.

Region Availability: While expanding, it is still officially distributed through a phased rollout, meaning users in some regions may need to download it directly or change store settings.

You can try this free PC cleaner for Windows 10 first. If it does not work as expected, then you can use other alternatives instead.