[5 Ways]How Do I Speed Up A Slow Computer?

How do I speed up a slow computer? Running slow is a sign that warns us to clean up the computer. Here, you can learn some effective ways to clean up the computer space to speed it up.


By Tina / Updated on May 12, 2023

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How do I speed up a slow computer?


" I bought the Lenovo laptop in 2020 and have been using it ever since. However, the computer has been slowing down in recent months, and in extreme cases, it would freeze. I've installed some free antivirus programs, but I don't have any results. How do I speed up a computer that is slow? I’m most interested in software improvements rather than hardware. I'm looking forward to your suggestions. Thank you all. "

lenovo pc

Why the PC is running slow?

Like the users mentioned above, many people are now plagued by slow computer speeds. Excessive applications, junk files, hibernate files, malware and other reasons may become the "fuse" of low disk space and slows down your computer.

Running too slowly can make your computer useless, especially when you can't open web pages, run programs, or even start the system in a short time. So we need to find the answer to "How do I speed up a very slow computer".

Solved: How do I speed up a slow computer

In order to improve the efficiency of computers, we have to make some efforts. In the following content, we'll discuss some ways to free up your PC space to make it run faster.

Method 1. Uninstall less frequently used applications

There is no doubt that it will increase the operating burden of the computer if too many programs installed on the PC. Therefore, we need to uninstall some unneeded programs to improve the performance of the PC.

Step 1. Press "Windows" and "R" at the same time, then type "control" and hit "Enter".

Step 2. Click "Uninstall a Program" option under "Program" in the Control Panel.

Step 3. Right-click the applications you're not commonly use and then click "Uninstall".

uninstall programs

Method 2. Disable the hibernation

Hibernate files are the compressed contents of Windows after it goes to sleep, which are beneficial for the PC to start quickly when use again. However, these files take up much space. Therefore, when the computer runs out of space, we can disable the hibernation and delete the hibernate files without any bad effects on PC.

Steps: Press the "Windows" key, enter "cmd" in the search box and select "Run as administrator". After entering Command Prompt, type the command "powercfg.exe /hibernate off" and hit  "Enter" to disable the hibernation. After that, hibernate files will be deleted. 

hibernate off

Method 3. Use Disk Cleanup to delete files

Disk Cleanup is a Windows utility that helps users remove unnecessary files to speed up their computers, including temporary files, recycle bin, thumbnails, etc. 

Steps: Tap "Windows" and type "Disk Cleanup" in the search box, and select C drive in the small window that pops up. In the main interface of Disk Cleanup, check the files to be deleted, and click "OK" to start the task.

c drive clean up

Speeding up a slow computer with a professional utility

In order to better answer the "How do I speed up a slow computer" question of some users, I would recommend AOMEI Partition Assistant Professional, which is the best way to speed up a slow computer.

This powerful software can search all large files on the computer in an all-around way, the scanned files will be sorted and arranged in an orderly manner,  the selected large files will be totally deleted from your PC. Some important system-related large files will be marked in red to warn users to dispose of them properly.

Additionally, you can use two other features to free up space on your PC:

PC Cleaner: Completely scans out all junk files on the computer, some junk files recommended for deletion will be automatically selected, you can delete them with a click.
✦ App Mover: Moves installed programs/folders to another drive without losing data.

Let's see how it works on speeding up a slow computer.

Free Download Win 11/10/8.1/8/7/XP
Secure Download

Step 1. Download and open AOMEI Partition Assistant Professional, click "Free up" and "Delete Large Files" one by one.

delete large files

Step 2. Select the partition you want to scan for large files and click "Start Scan". (The C drive will be selected automatically.)

start scan

Step 3. All the large files from the drive you choose will be found out, select the large files you want to delete and then click "Delete".

click delete

Step 4. This smart PC Cleaner can help you figure out how much space you can free up, click "Delete Now" to delete all large files you selected.

delete now

Allocate free space to extend C drive

The slow computer speed may also be caused by the C drive full, so we can try to allocate free space from one drive to the C drive, which will speed up the PC running speed.

Step 1. Right-click the drive (Here, we select the D drive.) with much free space, then click "Allocate Free Space".

select the drive

Step 2. Set the size and destination drive and click "OK".

set the destination drive size

Step 3. Click "Apply" to complete the task to extend C drive.

click apply

Tip: You can also enjoy other popular features, such as:
 Migrate system Wizard: Only move system and system related files to another drive.
Split partition: Divide a large partition into smaller partitions according to your needs.
☝ Defrag disk or partition: Effectively handle file fragmentation in your computer.
☝ Convert MBR to GPT: Convert system disk from MBR to GPT and vice versa.
☝ Wipe System Disk: Quickly and securely wipe the entire system disk.


How do I speed up a slow computer? In this article, we provide 5 detailed methods, including Windows built-in tools and a great third-party tool. By the way, if you want to speed up your Windows Server PC with AOMEI Partition Assistant, you can go to the Server Edition.

Tina · Staff Editor
Tina is an English editor of AOMEI Technology. She has a positive attitude and full of energy. On her work, she always keeps thinking to figure out the solutions for users' problems, and writes the answers so that can help someone. In her daily life, she likes to sing, watch TV and sleep. She always being grateful and happy to all the things happened and all the people encountered.