i am unable to open postman on windows

Question

i am unable to open postman on windows

ANSHITA BHARTI 20

I have downloaded the Postman but it is not opening,not even in a run as adminstrative way

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Answer accepted by question author

Sin-D 10,030 Microsoft External Staff Moderator

Hi ANSHITA BHARTI,

I understand you're unable to open Postman on your Windows device even when trying “Run as administrator.”

Have you already tried the Q&A Assist suggestions? In addition, could you help confirm:

When you try to open Postman, what happens exactly?
- Nothing happens at all?
- A loading spinner appears then closes?
- Any error message?
Did this issue start right after installing Postman, or after a Windows update/change?
Are other apps working normally, or is this happening only with Postman?
Did you install Postman using:
- Installer (.exe), or
- Microsoft Store?

Looking forward to your update.

Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

Sin-D 10,030 Reputation points Microsoft External Staff Moderator

2026-05-12T03:02:51.2466667+00:00

Hi ANSHITA BHARTI,

Have you had the chance to check my answer yet?

Please do keep me updated.
ANSHITA BHARTI 20 Reputation points

2026-05-16T17:57:51.3233333+00:00

A loading spinner appears then closes
Sin-D 10,030 Reputation points Microsoft External Staff Moderator

2026-05-17T03:42:08.5166667+00:00
Hi ANSHITA BHARTI,

Thanks for confirming. Please try the following:

1, Clear Postman local data

Corrupted data can prevent the app from launching.

Press Win + R

Type: %appdata%

Find and delete the folder named “Postman”

Then go back to Run > type: %localappdata%

Delete the “Postman” folder there as well

Restart your PC and try opening Postman again

Note: This removes saved sessions/settings inside Postman.

2, Try launching Postman with GPU disabled

Sometimes rendering causes silent crashes.

Navigate to Postman install folder (usually): C:\Users\<your username>\AppData\Local\Postman\

Find Postman.exe

Right‑click > Create shortcut

Right‑click the shortcut > Properties

In “Target”, add this at the end: --disable-gpu

Launch using that shortcut

3, Quick antivirus check

Since the app closes silently:

Temporarily disable antivirus (if safe to do so)

Try launching Postman again

If it works after disabling , add Postman as an exception.
Jefferson Daniel 0 Reputation points

2026-05-17T05:50:46.59+00:00

What is the fix for this? because I'm also having the same issue. the only way to get postman to work is by constantly kill the task program, then delete the folder in %appdata%. That been the only way I can get it to work, but then I have to constantly sign back in again.

I've also tried uninstall / reinstalling postman, and it's always the same thing. it works fine the first time running it, but the next day or reboot, or next time opening the program. it just hangs. you can see it running in task manager, but it never opens. Then again only way to open it is deleting the %appdata% folder.

The shortcut and turning off antivirus made no difference. I thought i was going crazy, but it not me after all. I literally just reformatted my computer and wondering why the hell I'm already running into windows issue. Please get this fixed.
Sin-D 10,030 Reputation points Microsoft External Staff Moderator

2026-05-18T03:37:39.3766667+00:00
Hi Jefferson Daniel,

Since reinstalling and antivirus changes didn’t help, this points to a corrupted user data/cache state being recreated after each run.

Could you confirm a quick thing first:

Does it still hang if you run Postman as Administrator once after reinstall?

This will help narrow down whether it’s a profile corruption loop or a permissions-related issue.

3 additional answers

Your answer

Sin-D 10,030 Reputation points Microsoft External Staff Moderator

2026-05-12T03:02:51.2466667+00:00

Hi ANSHITA BHARTI,

Have you had the chance to check my answer yet?

Please do keep me updated.
ANSHITA BHARTI 20 Reputation points

2026-05-16T17:57:51.3233333+00:00

A loading spinner appears then closes
Sin-D 10,030 Reputation points Microsoft External Staff Moderator

2026-05-17T03:42:08.5166667+00:00

Hi ANSHITA BHARTI,

Thanks for confirming. Please try the following:

1, Clear Postman local data

Corrupted data can prevent the app from launching.

Press Win + R

Type: %appdata%

Find and delete the folder named “Postman”

Then go back to Run > type: %localappdata%

Delete the “Postman” folder there as well

Restart your PC and try opening Postman again

Note: This removes saved sessions/settings inside Postman.

2, Try launching Postman with GPU disabled

Sometimes rendering causes silent crashes.

Navigate to Postman install folder (usually): C:\Users\<your username>\AppData\Local\Postman\

Find Postman.exe

Right‑click > Create shortcut

Right‑click the shortcut > Properties

In “Target”, add this at the end: --disable-gpu

Launch using that shortcut

3, Quick antivirus check

Since the app closes silently:

Temporarily disable antivirus (if safe to do so)

Try launching Postman again

If it works after disabling , add Postman as an exception.
Jefferson Daniel 0 Reputation points

2026-05-17T05:50:46.59+00:00

What is the fix for this? because I'm also having the same issue. the only way to get postman to work is by constantly kill the task program, then delete the folder in %appdata%. That been the only way I can get it to work, but then I have to constantly sign back in again.

I've also tried uninstall / reinstalling postman, and it's always the same thing. it works fine the first time running it, but the next day or reboot, or next time opening the program. it just hangs. you can see it running in task manager, but it never opens. Then again only way to open it is deleting the %appdata% folder.

The shortcut and turning off antivirus made no difference. I thought i was going crazy, but it not me after all. I literally just reformatted my computer and wondering why the hell I'm already running into windows issue. Please get this fixed.
Sin-D 10,030 Reputation points Microsoft External Staff Moderator

2026-05-18T03:37:39.3766667+00:00

Hi Jefferson Daniel,

Since reinstalling and antivirus changes didn’t help, this points to a corrupted user data/cache state being recreated after each run.

Could you confirm a quick thing first:

Does it still hang if you run Postman as Administrator once after reinstall?

This will help narrow down whether it’s a profile corruption loop or a permissions-related issue.

Answer 1

Jefferson Daniel 0

Yes it still hangs with running as Administrator. I did notice however per another GitHub Thread that postman support provided, that letting the program just sit for the full extended time (up to 15min or more) it eventually finally loads up. It installs whatever update it was doing or process and now appears to open more consistently again.

link: https://github.com/postmanlabs/postman-app-support/issues/5681#issuecomment-601673575

Sin-D 10,030 Reputation points Microsoft External Staff Moderator

2026-05-18T07:05:56.2466667+00:00

Hi Jefferson Daniel,

Thanks for sharing a workaround and that letting Postman sit eventually allows it to load.

As this issue appears to be specific to the Postman application itself, I’d recommend continuing with the Postman GitHub thread you referenced or reaching out directly to Postman support so their team can investigate the root cause.

Thanks for sharing your findings, it may help others experiencing the same behavior.

Answer 2

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Answer 3

Try these steps in order on Windows to troubleshoot Postman not opening:

Confirm Postman installation

Make sure the correct Postman desktop app for Windows was downloaded and installed from the Postman website.
After installation, open it from Start > All apps > Postman.

Run as administrator correctly

Locate the Postman shortcut or executable.
Right-click > Run as administrator.
If a User Account Control prompt appears, allow it. If the account doesn’t have admin rights, sign in with an administrator account first.

Check for general Windows issues

Ensure Windows is up to date: Settings > Windows Update > Check for updates.
Restart the PC after updates.

Verify the account and permissions

Log in with a Windows account that has full administrator rights.
If Postman was installed by another user or IT, ask them to uninstall and reinstall it while logged in as an administrator, then try again under the normal account.

Reinstall Postman

Uninstall Postman from Settings > Apps > Installed apps.
Download the latest desktop version again from the Postman website.
Install it while logged in as an administrator, then try launching it normally.

If the app still doesn’t open after these steps, involve the IT administrator to verify there are no security policies or antivirus tools blocking the executable.

References:

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i am unable to open postman on windows

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