Best PC Cleaner and Optimizer for Windows 10

How can you find the best PC cleaner and optimizer for Windows 10 or 11 PC? This post will show you how to choose a suitable tool and how to use it to optimize your PC.

By Hedy    Updated on April 28, 2026

What are PC cleaners?

PC cleaners are dependable tools that assist users in speeding up Windows and improving overall performance by performing numerous optimization activities. Reliable cleaning software can remove trash files, different kinds of caches, cookies, temporary files, surfing history, and other items. It also helps users remove faulty registry files and startup objects, as well as minimize background processes to free up RAM.

Why need to clean your computer with an easy PC cleaner?

Why your computer is low on memory? The computer may become full due to too many installed programs or games; if not, we need to consider whether there are some junk files hidden on the computer.

In daily life, lots of Windows users will subconsciously ignore the junk files hidden on the PC. Over time, they would occupy a lot of space and cause the computer to run slowly. You can receive the low disk space warning. Worse, it may lead to blue screen and computer crash in severe cases.

Therefore, it is necessary to clean up these files regularly, especially for the users who are suffering from computer space full. In this article, we will share an easy cleaner for Windows 10, 8, and 7, as well as Windows 11, which can clean all junk files and improve computer performance.

How to choose a reliable PC cleaner for Windows PC?

Many users may have confronted that their Windows PCs have frequent system crashes, slow startup times, or other typical PC faults, if you're one of them, now it's an opportune time to get your hands on the best PC cleaner and optimizer for Windows 10 or 11 machines. Although the software market has various similar products, how do you find a suitable disk cleaner or an advanced system optimizer among numerous products?

Well, first you need to make it clear what kind of PC optimizer you want to search for: free or paid; basic service or advanced optimization; only for cleaning or for all-around disk management; do you need a game booster…

Once you’ve made the decision, you can find your best PC cleaner and optimizer.

Free download: Best PC cleaner and optimizer for Windows 10 & 11

If you not only need a cleaning feature but also some other disk management functions to help you optimize and organize your device, here we suggest you choose AOMEI Partition Software, a powerful disk and partition manager for Windows 11/10/8/7users.

Firstly, the “PC Cleaner” feature can scan your disks and system to dig all junk files out, and users can customize which part of files they want to remove. All temp files, system caches, and RAM cache will be cleaned by clicking the “Clean All” button.

Secondly, besides a disk cleaner, this tool has many other practical functions to optimize your Windows, such as test disk speed, HDD defragment, merge partition/non-adjacent unallocated space, convert data disk between MBR/GPT, etc. With one tool, you can do more for PC maintenance.

AOMEI Partition Software

A safe and reliable disk partition management tool that helps you migrate OS to SSD or HDD, reorganize disk space, and improve overall PC performance.

Step 1. Install and launch AOMEI Partition Software, and then click "Free up" > "PC Cleaner".

Step 2. In the pop-up window, click "Start Scan" to scan for junk files.

Step 3. Wait until the scanning process completes.

Step 4. When the scan is completed, all kinds of available junk files will be listed. Then, tick the options you want to clean, then click "Clean All" to begin the cleaning process.

Step 5. When you see a correct symbol displayed in the interface, you can click "Back" to exit the Window.

Then your PC will get rid of all redundant junk files.

How to improve computer performance with or without PC optimizer

Way 1. Restart PC

If your computer suddenly slows down, then you can reboot it to end the error program. Sometimes the background programs may have some errors during the process.

The computer normally ends the programs and processes when the device resumes and the data put into memory is also cleaned, which aids in the resolution of day-to-day performance and stability difficulties caused by keeping the operating system running for an extended period of time.

Way 2. Disable the apps at the startup

In Windows, many programs will register to start automatically upon startup. They will continue to run in the background, wasting system resources and slowing down the experience.

So, while attempting to speed up Windows, it is advised that you restrict the number of programs that execute during startup.

Step 1. Open Settings > Apps > Startup.

Step 2. Click the Sort by menu and select the Startup impact option.

Step 3. Turn off the toggle switch for any unnecessary app especially those marked as "High impact" by the system.

Way 3. Remove unnecessary software

Your computer comes pre-installed with a variety of software that most users would never use, but which can consume many system resources and disk space. These are generally identified by a pop-up encouraging you to update an application you've never used before.

Step 1. Click on the "Start" button and visit the “All apps” menu

Step 2. You can view a list of the applications you have installed - and the ones you haven’t. Once you find the program you want to uninstall, right-click on the icon to see the "Options" menu

Way 4. Move large apps and folders to another location

It might be difficult for users to select which app needs to be removed because when you open the list, you may find all installed apps are needed. However, they really take up too much available space on the disk, including their large data files.

In this case, you can try AOMEI Partition Software to move the large programs to another drive/disk to release more resources from your system drive. This tool is a disk and partition manager for Windows 11/10/8/7. The “App Mover” feature can help you move installed programs and folders after scanning the disk to recognize all movable apps and folders. When the process is finished, you can run your programs from the new storage path and the files will be stored in the new location.

Step 1. Install and run AOMEI Partition Software, click “Free up” > “App Mover”.

Step 2. In the new window, click “App Mover”. If you wish to move Users folders or Profiles folders, you can click “Move Folders”.

Step 3. In the pop-up window, choose the partition that you want to free up via moving apps (here is partition C) and click “Next”.

Step 4. In the window, all movable apps on the C drive will be listed. You can choose one or multiple apps that you need to move and the destination partition. Then click “Move” to execute the operation.

Step 5. Confirm that you have closed the apps that you will move from C drive to D drive. Then, click "OK".

Step 6. Wait for the move process to complete. Then, click "Finish".

Way 5. Add more RAM

RAM on your computer serves as the computer's short-term data center. When it is overburdened, it might produce slow results. To check what your PC is presently working on, open Task Manager from the Start menu or by hitting Ctrl + Shift + Esc, and then select Performance > Memory.

8GB of RAM is plenty for a typical business PC to deliver the fast surfing speeds and multi-tasking that the ordinary PC user is likely looking for in performance.

If you want your computer to be speedier for gaming, you might consider upgrading RAM to 16GB or even 32GB. The quantity of RAM might be exorbitant and pricey for the ordinary computer user, so make sure to research what RAM storage capacity your computer model has. RAM is often installed into a predetermined number of slots.

By the way, make sure your PC can handle the update before purchasing new RAM sticks. The maximum RAM your computer can support is the lower limit of what your motherboard and operating system can support, and you'll need to determine whether your PC supports DDR3 or DDR4 RAM.

Conclusion

PC cleaners optimize Windows by removing junk files, clearing caches, and managing background processes to boost performance. While manual methods like restarting, disabling startup apps, and upgrading RAM help, AOMEI Partition Assistant offers a comprehensive solution. It simplifies maintenance through automated junk removal, disk management, and an "App Mover" feature to free up system space, ensuring a faster, more stable computer experience.

Hedy · Editor
Hedy always provides easy-to-follow guides to help users resize/move/delete/clone partitions with AOMEI products.