Visual Studio 2022 & 2026 Debug Project still crash in busy, can't click any button in visual studio

Question

Visual Studio 2022 & 2026 Debug Project still crash in busy, can't click any button in visual studio

WU Qi (BCSC/EPA2) 0

正如标题描述的那样,什么项目都这样,最近出现的偶尔有那么一次正常,重启电脑马上运行也正常过一会就不正常了,鼠标一直处于繁忙状态,Visual Studio 所有的控件都不能点击完全没法调试.请看我上传的GIF 2026-01-28_14h51_26

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Answer 1

Susmitha T (INFOSYS LIMITED) 2,610 Microsoft External Staff

Thank you for reaching out!

This behavior is not caused by the project or application code.

Visual Studio becomes unresponsive because one of its background components (such as the debugger, extensions, or internal cache) stops responding and blocks the Visual Studio user interface.

Recommended Solution:

Step 1: Start Visual Studio in safe mode

This disables all extensions and helps identify extensions-related issues: devenv /safemode
If Visual Studio works normally in safe mode, the issue is caused by one of the installed extensions.

Step 2: Clear Visual Studio cache (Effective Fix)

Close Visual Studio.
Delete the following folders: %LOCALAOODATA%\Microsoft\VisualStudio\17.*\ComponentModelCache %LOCALAPPDATA%\Microsoft\VisualStudio\17.*\Cache
- Restart Visual Studio: These files are automatically recreated and safe to remove

Step 3: Disable Hardware Graphics Acceleration

Open Tools -> Options -> Environment ->General
Disable use hardware graphics acceleration
Restart Visual Studio

This resolves UI freezes on some systems.

Step 4: Temporarily Disable Git Integration (If used)

Go to Tools ->Options ->Source Control
Set source control to None
Restart Visual Studio

Let me know if you need any further help with this. I will be happy to assist.
If you find this helpful, Kindly mark the provided solution as "Accept Answer", so that others in the community facing similar issues can easily find the solution. Your contribution is highly appreciated.

Susmitha T (INFOSYS LIMITED) 2,610 Reputation points Microsoft External Staff

2026-02-02T09:36:32.94+00:00

Hi, hope you’re doing well. We’re following up on this thread to check if the issue is still occurring or has been resolved. If it has been resolved, kindly mark the answer as accepted. We will proceed with thread closure 4th January.

Looking forward to your response.
Susmitha T (INFOSYS LIMITED) 2,610 Reputation points Microsoft External Staff

2026-02-04T04:55:39.0066667+00:00

As we haven’t received any further updates or follow-up on this thread, we will be proceeding with thread closure. If you need additional assistance or have new information to share, please feel free to post a new thread. We’ll be happy to support you further as needed.
WU Qi (BCSC/EPA2) 0 Reputation points

2026-02-24T11:01:59.2066667+00:00

I have tried all your suggestions, and no method can resolve this issue. And I have removed all things(AppData, Nuget folder, cache etc,. ) regarding Visual Studio and uninstall software package via Visual Studio Installer and reinstall Visual Studio 2026. Problem comes back. I found a new thing, if I start visual studio and run in debug mode, it works well. But once I closed Visual Studio and restart it the problem will be come back. I have to sign out or restart computer the problem will be disappear, but I cannot close Visual Studio. I think maybe some background task or service is not closed, and it triggered this problem.
Susmitha T (INFOSYS LIMITED) 2,610 Reputation points Microsoft External Staff

2026-02-25T12:09:34.5533333+00:00

Thank you for the additional information.

Since the issue persist even after a full reinstall and clearing all visual studio-related folders, this indicates the problem is not caused by the project or Visual Studio installation itself.

Based on the behavior described (working after reboot/sign-out, but failing after closing and reopening Visual Studio), the most likely cause is a background process or security software that is not terminating properly and is interfering with Visual Studio on the next launch.

Please do following checks:

1.After closing Visual Studio, open task manger and ensure no devenv.exe, ServiceHub, MSBuild, or dotnet processes remain running. If they do, end them manually and try opening Visual Studio.

2. Temporarily disable antivirus/endpoint security software to verify whether it is blocking or holding debugger-related processes.

3. Testing using a new Windows user profile to rule out user profile corruption.

4. Ensure GPU drivers are updated from the hardware vendor's official website.

This type of issue is typically caused by an external system-level process rather than Visual Studio itself.

Let me know if you need any further help with this. I will be happy to assist.
If you find this helpful, Kindly mark the provided solution as "Accept Answer", so that others in the community facing similar issues can easily find the solution. Your contribution is highly appreciated.
Susmitha T (INFOSYS LIMITED) 2,610 Reputation points Microsoft External Staff

2026-02-27T12:17:29.27+00:00

Hi, hope you’re doing well. We’re following up on this thread to check if the issue is still occurring or has been resolved. If it has been resolved, kindly mark the answer as accepted. We will proceed with thread closure 2nd March.

Looking forward to your response.
Susmitha T (INFOSYS LIMITED) 2,610 Reputation points Microsoft External Staff

2026-03-02T09:09:03.84+00:00

As we haven’t received any further updates or follow-up on this thread, we will be proceeding with thread closure. If you need additional assistance or have new information to share, please feel free to post a new thread. We’ll be happy to support you further as needed.

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Visual Studio 2022 & 2026 Debug Project still crash in busy, can't click any button in visual studio

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