14 Ways to Solve Windows Server 2022 Slow Performance

How to solve Windows Server 2022 slow performance? Try to solve this problem through the 14 ways provided by this article so as to optimize Windows Server 2022 performance.


By Hedy / Updated on May 12, 2023

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How to solve Windows Server 2022 slow performance?

"Recently, I assembled a new Server with Windows Server 2022 whose equipment is pretty good(2x Intel Xeon Gold 5320 CPU 2.20GHz、256GB RAM、O/S on 1TB RAID 1 SSD、24x4TB SSD and so on). However, this new Server runs very slowly, which usually takes the task manager 6 to 7 seconds to boot it. Also, the mouse pointer often turns into a spinning circle and even interactive applications are out of response. I have tried adjusting power plan to high efficiency and check task manager. Nothing is abnormal, but it still runs slowly. I have no idea what I need to do. Is there any reliable suggestions to solve Windows Server 2022 slow performance?"

Windows Server 2022, released by Microsoft in Sep. 2021, is advanced in performance. However, after a period of use, some users think that the performance of Windows Server 2022 doesn't reach the expectation or performs slowly as described above. If you are involved in the same trouble, read this context carefully to find the most suitable method for you. But before that, you’d better know why Windows Server 2022 performs slowly.

Why does it happen?

According to the feedback from users, Windows Server 2022 performance tuning is an exact truth. So why does your Windows Server 2022 have slow performance? The most common reasons are as follows:

♦ Enable power saving mode to reduce power consumption
♦ Overuse memory
♦ High CPU usage caused by running multiple large applications at the same time
♦ High network utilization results in slow performance
♦ Too many spam documents occupy hard disk storage space
♦ Infected by viruses or malware
♦ Insufficient system disk space
♦ Network connection speed is too slow
♦ Outdated device drivers

14 ways to solve Windows Server 2022 slow performance

If you have some difficulties in solving Windows Server 2022 slow performance, you can try the following methods one by one. Believe at least one of them can help you solve it and works for Windows Server performance tuning. These methods apply to Windows Server 2019 slow performance as well.

Method 1: Check network connection

In fact, a Server slow performance may have something to do with network connection. Therefore, to solve it, you can check network connection according to the following steps to make sure a normal speed.

Check the connection cables of network is working and ensure they are the most advanced high-speed cables.

1. If necessary, you can get in touch with Internet Service provider(ISP) to know whether your network has problems in connecting.

2. Please check your network interface card to make sure its hardware and software are the newest and should be replaced if necessary.

3. In some cases, DNS may cause some problems about the network connection. Therefore, you need to check and modify DNS, and ask for professional help if necessary.

Method 2: Check and close unnecessary background programs

The number of applications that can be opened by memory is limited, especially when you use multiple large applications at the same time, which usually leads to obstruction in memory, further slowing down the Server speed and lowering the overall performance. Therefore, when you encounter Windows Server 2022 slow performance, check and close unnecessary background programs first to save memory space.

1. Press Ctrl+Shift+ESC and open task manager, view CPU and memory usage in the Processes tab.

2. Click CPU and memory respectively, and list their usage in descending order.

3. Right-click the applications with high usage and choose "End task".


Method 3: Add memory

Memory size will directly effect the Server speed, so if the budget permitted, add memory as much as you can. It can improve the speed of running multiple applications on Windows Server 2022, which will contribute to solving slow performance.

Please notice that memory that can be added by the server is restricted by some factors like CPU and operating system, which should be added properly according to the real condition. Moreover, different brands of memory will have certain differences, and the server will recognize the lowest speed, so try to choose the memory of the same clock rate and brand.

Method 4: Disk Cleanup

Insufficient disk storage space will lead to Server slow performance and compulsively close the running applications. Therefore, cleaning your disk regularly to delete unnecessary temporary files from the disk is necessary, which is also useful for solving Windows Server 2022 slow performance.

1. Press Windows+E to open file explorer, and find the disk you plan to clean(choose system disk first).

2. Right click the disk and choose "Properties" in the extended menu.

3. In the general tab window, click "Disk cleanup".

4. According to your real condition, click Downloaded Program Files, DirectX Shader Cache, Tempopary Internet Files, and so on. Then, click "OK".


Attention: If you want to further clean disk, you can choose clean system files.

Method 5: Scan and clean viruses and malware

The Server, like PC, has the possibilities of being attacked by viruses and malware. Any applications occupying lots of resources should be scanned by Windows Defender firewall in time and scanned completely regularly. Although Windows Defender is useful, we highly recommend you to install a more professional and powerful third-party anti-virus software and update virus database regularly to protect the Server from being infected by viruses and malware, which can also help solve Windows Server 2022 slow performance.

1. Press Windows+S to open search bar, input "Windows security".

2. In Windows security window, click "Virus & threat protection".

3. In Current threats part, click "Scan options", select "Full scan" and click "Scan now".


Method 6: Disable DOS 8.3 short filenames

The DOS 8.3 format, also known as short filenames, supports up to eight-character filenames and three-character extensions, such as Regedit.exe. What worth mentioning is that DOS 8.3 short filenames is the common form of previous Windows edition. If you don’t need supports for old devices or short filenames, you can disable it to speed up archives indexing and creation, which can also work for solving Server 2022 slow performance.

1. Press Windows+S to open search bar, input cmd and select "Command Prompt".

2. In the Administrator: Command Prompt window, input "sutil 8dot3name query C:" and press "Enter". This step will tell you whether DOS 8.3 is being used. Also, you can replace c: with other drive letters.


Method 7: Change power plans into high performance

Each Server has its specific power setting to make sure regular functions can run smoothly. Because the Server's power plan will dynamically adjust CPU clock rate speed and cause computer performance to fluctuate, you need to adjust the power plan to ensure CPU run at a 100% rate when you want to make sure the Server is always at a high-efficiency state, which can not only solve Windows Server 2022 slow performance, but also help Windows Sever optimization.

1. Right-click "Start", select "Power options".

2. In Power&sleep window, click "Additional power setting".

3. In Power options window, choose or optimize a power plan into "High performance".


Method 8: Update driver

The Server also needs regular maintenance, otherwise there will be some problems like outdated drive letters. The problem of drive letters occurs in network interface cards and graphics cards may bring slow performance in Windows Server 2022. Therefore, when you get caught in such problems, try updating device drivers to solve it.

1. Right click "Start", and select "Device Manager".

2. Extend Network Adapter and choose the Network Connection currently in use, then right click it and select "Update driver".


3. Choose "Search automatically for updated driver software" in the new windows. Please follow the wizard if any available update is found.

Method 9: Disable SMB packet signing

SMB is a protocol name, short of Server Message Block. SEM signature, the safety mechanism in the protocol, aims to forbid any malicious users or devices to modify SEM packet by grabbing data. However, in some cases, SEM packet signing will slow down the Server, especially the transfer speed of large files, which will cause Windows Server 2022 slow performance. Therefore, you need to disable it in the local policies editor to solve the problem.

1. Use Windows+R to open run window, input "gpedit.msc" and press "Enter" key.

2. On the left panel, click Computer Configuration>Windows Settings>Security Settings>Local Policies>Security Options.

3. In the right panel, softly double-click "Microsoft network client: Digitally sign communications (always)".

4. In the Local Security Setting window, choose "Disabled" and click "OK".


Digitally sign communications is a safety device, which needs to be closed only with other safety measures are taken, or it may lead to man-in-the-middle attack.

Method 10: Scan and recover system documents

After a long-term use of SSD, the performance of SSD will be degraded, and memory block will be damaged, which further lead to system errors or damage on system files. To check and repair such errors, the best way is to scan the system completely by  the System File Check tool, with which can help windows file server performance tuning.

1. Press Windows+S to open search bar, input "cmd" and select "Command Prompt".

2. In the Administrator: Command Prompt window, input "SFC/Scannow" and press "Enter" key, which may take you some time.


Method 11: Check hardware faults

When you find problems by using System File Check tool, it means your driver has stopped working or is at the brink of stopping. When it happens, you need to check whether the server has faults in hardware, including various external devices connected to the server. If any hardware faults are found, please shut down the computer for maintenance in time and replace the hardware.

Method 12: Perform Windows Memory Diagnostics

The problem in Server memory may cause Windows Server 2022 slow performance, so you can try performing Windows memory diagnostics to solve it.

1. Press Windows+R to open run window, input "mdsched.exe"and press "Enter" key.

2. In Windows Memory Diagnostics window, click "Restart now and check for problems(recommended)".


3. System will automatically check and repair memory problems during the process of rebooting.

Method 13: Expand storage space of system partition

Usually, Windows Server 2022 was installed on local disk (C:). Insufficient storage space of it possibly leads to Windows Server 2022 slow performance. Therefore, you not only need to clean system partition regularly but also try to increase the local disk space to solve the problem above. Using Server disk management to expand the storage space is a feasible way, but it requires adjacent unallocated space. If there is no suitable unallocated space on your disk, you can choose a third-party disk manager named AOMEI Partition Assistant Server to expand the storage space of the C drive, which can effectively solve Windows Server 2022 slow performance.

AOMEI Partition Assistant Server is a professional Server partition manager, allowing you to expand the existing system disk storage space in different editions of Windows Server 2003/2008/2012/2016/2019/2022 and so on. Now, you can download and install the demo edition to have a try:

Free DownloadWin 2022/2019/2016/2012/2008
Secure Download

Note: Demo version can just show you how it works, cannot operate successfully unless you upgrade it.

Step 1: Find system disk, right-click a partition with large storage space(except C drive), and choose "Allocate free space".


Step 2: In allocate free space window, modify the storage space you need to move, change the destination partition into (C:), and click "OK".


Step 3: Back to the main console, and click "Apply" to check the operation. After confirmation, choose "Proceed".


Moreover, AOMEI Partition Assistant Server provides more functions you might be interested in:
This software can not only allocate free space from one partition to another but also allow you to move programs to another partition to free more space on the original partition.
If you want to transfer all data on the installed disk to a second newly installed disk, you can try disk clone, which allows you to adjust the size of the partition when cloning.
If you install an SSD with better performance on your computer, you can migrate OS to SSD to make sure it can be bootable.
Besides, using a dynamic disk converter can convert dynamic disk into basic disk without data loss.

Method 14: Perform disk defrag

If you don't want expand system partition storage space, managing Windows disk defrag regularly is an alternative method to solve Windows Server 2022 slow performance. You also need AOMEI Partition Assistant Server to operate, the following is the detailed steps:

Step 1: Run AOMEI Partition Assistant Server, in the left panel, right-click the disk, and choose “Disk Defrag”.


Step 2: In the disk defrag window, choose "Schedule" at the bottom.


Step 3:Choose the drive that needs to be scheduled and click "Defrag" checkbox, then set to perform defagment daily, weekly, monthly, when booting or when logging in. Finally, click "OK".


Note: You can also select "Conditions" and click "Define" to set the time when to perform defragment.


If you are disturbed by Windows Server 2022 slow performance and don't know what to do, please read carefully the 14 ways provided in this article and try them one by one if possible to find the most available one to recover your Server as before. Among all of them, the method of expanding system disk space provided by AOMEI Partition Server is highly recommended to you, which can not only solve the problems described above but also upgrade computer operation efficiency and allocate more space for the C drive.

AOMEI Partition Assistant Server works well on all editions of Windows Server. With the help of it, you can easily expand system partition only in several simple steps. Furthermore, this software can fulfill all of your needs like SSD alignment and erasing system disk.

Hedy · Staff Editor
Hedy is an editor of AOMEI Technology. She is very good at solving problems of partition management, and she wants to share all the problems she had already solved to users who met the same questions.