i found the problem . its language selection on buttom right corner on vs code and you need to change it to HTML.

Answer from saman mohamadi on Stack Overflow
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GitHub
github.com › microsoft › vscode-livepreview › issues › 230
Live Preview was working but now the icon / right click option are not visible · Issue #230 · microsoft/vscode-livepreview
April 29, 2022 - Live Preview was working fine earlier this week. Now i cannot see the Live Preview icon, or see the option if i right click on the html.index file. I have tried deleting the extension and re-downloading, enabling / disabling all extensio...
Author   gclcodeguy
Discussions

Live preview icon is invisible
The live preview icon is invisible, when i move the mouse over it i only see a darker square, also same with extension manager icon. I got the sprint 36 version on windows 7. More on github.com
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11
March 5, 2014
html - Can't access live preview of my files? It says 'command 'livePreview.start.preview.atFile' not found? - Stack Overflow
I was having the same issue from the start of installing Live Preview. Updating VScode seemed to have fix the issue. You may need to update the VScode application: Click the little gear icon found at the bottom of the left side bar (the "Manage" button, under the profile icon). There, you may notice ... More on stackoverflow.com
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I have Visual Studio and installed Live Preview but no live preview option
It shows I have Live Preview installed but per instructions to click Live Preview from file right click or from "View" or anywhere else is not available to me. I restarted my pc. Didn't change anything. I uninstalled Live Preview and… More on learn.microsoft.com
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0
October 27, 2024
Preview button missing
I've installed live preview and enabled it. I also started the server and I see that it is using port 3000 (I'm using remote-ssh). However, there is no button on the tab bar to preview HTML files, ... More on github.com
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August 5, 2021
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GitHub
github.com › adobe › brackets › issues › 7091
Live preview icon is invisible · Issue #7091 · adobe/brackets
March 5, 2014 - The live preview icon is invisible, when i move the mouse over it i only see a darker square, also same with extension manager icon. I got the sprint 36 version on windows 7.
Author   RahavLussato
Top answer
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Hello @Paula Henderson,

Thank you for taking time to post this issue in Microsoft Q&A forum.

As Visual Studio(VS IDE) and Visual Studio Code(VS Code) are two different products, their extensions are usually different. May I firstly confirm, if you are using this extension: Live Preview? If so, it’s an extension for VS Code, not for VS IDE.

If you are using VS Code, the preview option should be there when you right-click one of the web pages. For example, I tested with a single .html file, see following screenshot:

If you are using VS IDE, then maybe you mean the integrated Web Live Preview feature? If so, you may need to use it in ASP .NET Web applications. You can right-click one of the web pages, select "View in Browser" or "Browse With…"(choose the Internal Web Browser or other web browsers, click Browse button) to live preview this web page.  

Don't forget to enable web live preview feature and restart VS(Tools > Options > Web Forms Designer > General >Web Forms designer (requires restart) > Web Live Preview).

For example, tested with an ASP .NET Web application(.NET Framework, Web Forms):

Above is for VS 2022, if you are using VS 2019, you should follow the guidance here to enable it:

Web Live Preview (Preview)

If you still fail to see the corresponding options, please kindly share us some screenshots to confirm the issue and check further.

Please don’t hesitate to contact us.

Sincerely,

Tianyu


If the answer is the right solution, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".

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Thank you. My extension was wrong. I actually had a different file I created not coffee ext but it was apparently wrong ext too because it did not have preview. It's all in the ext. Thanks so much for your help

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GitHub
github.com › microsoft › vscode-livepreview › issues › 136
Preview button missing · Issue #136 · microsoft/vscode-livepreview
August 5, 2021 - I've installed live preview and enabled it. I also started the server and I see that it is using port 3000 (I'm using remote-ssh). However, there is no button on the tab bar to preview HTML files, ...
Author   JoelFeiner
Find elsewhere
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GitHub
github.com › microsoft › vscode-livepreview › issues › 319
Live Preview stopped working · Issue #319 · microsoft/vscode-livepreview
August 31, 2022 - Live Preview suddenly stopped working nothing happens when executing: Start Server or Show Preview (internal browser) extension is missing from status bar when executing Live Preview (External Brow...
Author   palacinka
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Reddit
reddit.com › r/obsidianmd › the live preview has not been working for the last few days.
r/ObsidianMD on Reddit: The live preview has not been working for the last few days.
September 28, 2023 -

Hello, Live Preview was working really fine for a few days, but in the last few days, it has stopped working.
Here's an example of the images I pasted, early it used to show me the image I pasted, but now it does unless I get to a reading mode (Ctrl+E). Can somebody help me with this,
I tired restarting, and updating my themes but nothing is working for me as of now.
Thank you.

Top answer
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If live preview fails only when you hover over a new Theme, and works for other things, such as selecting a new Quick Style set, then the reason is likely that your document doesn't contain anything which is immediately impacted by a Theme switch. For example, the text font will only change if it has been set to "+Body" or "+Headings"; if the style is explicitly set to (say) "Arial," that choice won't be affected by the switching Themes—nor will there be anything to preview.

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Hello, C. Huber

Welcome to the Microsoft community!

I have realized that Live Preview doesn't work on my PC

Before that, I would like to ask you for some information to better address your question.

I would like to confirm that what's the version of your Office and which Windows system you are current using?

Have you confirmed that the function is already turned on?

You can find this option in [File] > [Settings] > [General], User Interface Settings.

 You can then try typing a few words and changing the font to make sure it takes effect.

If Word doesn't work, you can open Excel and try it.

If that doesn't work, you can try the following steps.

  1. Cancel add-ons

Click on the document in the upper left corner of the file - Options - Add-ons - COM Add-ons Change Place to Manage, then select "Move", uncheck all add-ins, click OK, restart the Word document and see the effect.

  1. Registry Reset Office

Press Windows + R and type regedit in the Open Run box and press Enter.

Locate the following key and rename the Office folder (right-click it and select Rename (for example, Office will be renamed Officeold)):

HKEY_CURRENT_USER\Software\Microsoft\Office

Then open the Word document again to try the effect.

Disclaimer: Registry or workgroup modifications are typically intended for power users, administrators, and IT professionals and can help resolve some issues, but incorrect modification of the registry can lead to serious problems. So, strictly follow the steps below. Make a backup of the registry before modifying it for added protection. For more information about how to back up and restore the registry, see: How to back up and restore the registry in Windows - Microsoft Support

If resetting Office doesn't work, you can try changing your graphics card driver settings or creating a new local account to troubleshoot if it's a system or driver issue.

If resetting Office doesn't work, you can try changing your graphics card driver settings or creating a new local account to troubleshoot if it's a system or Disable the graphics card driver

Right-click on the Start icon in the lower left corner---Device Manager---Display Adapters---Find the graphics card driver, right-click to disable it.

Find your current graphics card driver, if you have a discrete graphics card it will show two drivers.

Usually there are three kinds of drivers: Intel, AMD and Nvidia.

If there are two drivers, you can right-click to disable the first driver (CPU Core).

Then you try opening Word again.

New local account: New local account can troubleshoot the problems caused by the system account modifying some personalized settings, the method by switching a system login account to achieve the purpose of restoring the initial settings, you can use this to reduce the interference of some settings on the software. At the same time, you don't have to worry about missing files, all the files installed on your computer are there. The documents that have disappeared from the desktop will be saved in your original account and you will be able to see them when you switch back again.

Manage user accounts in Windows - Microsoft Support

Feel free to post back if you need further assistance. 

Thank you for your understanding and patience and I look forward to hearing from you.

Ryan - MSFT | Microsoft Community Support Specialist

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Obsidian
forum.obsidian.md › bug graveyard
Live Preview: not working, despite resetting editor mode, disabling plugins etc - Bug graveyard - Obsidian Forum
February 22, 2022 - Steps to reproduce Using the editor, set to live-preview, however, I stil get the Edit / Viewing behaviour, and toggling live-preview doesn’t do anything, either. Expected result Using editor in live-preview mode. Actual result it is all configured for live-preview, but it operates in the ...
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GitHub
github.com › microsoft › vscode-livepreview › issues › 738
Issue · Issue #738 · microsoft/vscode-livepreview
June 6, 2025 - command 'livePreview.start.preview.atFile' not found. why is this error showing when i click on the live preview icon · Reactions are currently unavailable · No one assigned · No labels · No labels · No type · No projects · No milestone · None yet · No branches or pull requests ·
Author   Natashadotcom
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GitHub
github.com › adobe › brackets › issues › 5177
Live Preview icon should not display on files where live preview will not work · Issue #5177 · adobe/brackets
September 12, 2013 - Highly annoying to click 'okay' to dismiss the modal window that shows when live preview wont work on CSS files. Why show the icon if it only works on HTML files?
Author   nimbupani
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Ecamm Network
support.ecamm.com › en › articles › 5256618-ecamm-live-preview-mode
Ecamm Live Preview Mode | Ecamm Network Help Center
Once you're live or recording and you need to make a change, simply press the Preview Mode button in the bottom left hand corner of the main window. This will add a yellow PREVIEW icon at the top of your Preview screen and a red PROGRAM icon ...
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Visual Studio Marketplace
marketplace.visualstudio.com › items
Live Preview - Visual Studio Marketplace
Extension for Visual Studio Code - Hosts a local server in your workspace for you to preview your webpages on.
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Adobe
helpx.adobe.com › dreamweaver › kb › real-time-preview-issue.html
Real-Time Preview stopped working in Dreamweaver
May 6, 2019 - As a workaround for this issue, disable browser caching from the Settings menu in your browser. Then, click Real-Time Preview.
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Quora
quora.com › How-do-I-turn-live-preview-for-visual-studio-code-on-and-off
How to turn live preview for visual studio code on and off - Quora
Turn on (open preview): Command Palette (Ctrl/Cmd+Shift+P) → “Live Preview: Show Preview” or click the Live Preview icon in the Activity Bar if present.
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GitHub
github.com › coder › code-server › issues › 6156
[Bug]: Live preview extension does not work · Issue #6156 · coder/code-server
April 21, 2023 - Open the live preview extension, It will show the hello world but it will not work optimally, It will not auto refresh and it will show error saying (Failed to load message bundle.
Author   Sparklingx
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Scott Granneman
granneman.com › webdev › editors › archives › brackets › live-preview
Live Preview | Scott Granneman
Click the lightning bolt icon in the top right of the window. Select File > Live Preview. Press Command+Alt+P (Mac) or Ctrl+Alt+P (Windows or Linux). If everything is set up correctly, you should see the page open up in Chrome. If you see a prompt telling you that Brackets needs to restart ...