# Program Doesn't Open **URL:** \ **Category:** PIX4Dmapper\ **Created:** [February 21, 2022, 2:36pm UTC](https://community.pix4d.com/t/program-doesnt-open/21553 "2022-02-21T14:36:14Z")\ **Posts on this page:** 11\ **Page:** 2
**Author:** ![saurabh.shukla](https://avatars.discourse-cdn.com/v4/letter/s/bb73d2/32.png) [@saurabh.shukla](https://community.pix4d.com/u/saurabh.shukla)\ **Post date:** [March 14, 2024, 4:08pm UTC](https://community.pix4d.com/t/program-doesnt-open/21553/21 "2024-03-14T16:08:37Z")
Hi @Daniele_Lecci, Thank you very much for the response. If I uninstall, the license won’t be affected, right? Or do I not to deactivate the license before uninstalling? Moreover, in the laptop where Pix4D Mapper, there are 4 users who use, so uninstalling can only be done by the administrator or any of the users? Best regards, Saurabh ---
**Author:** ![Daniele\_Lecci](https://sea2.discourse-cdn.com/pix4d/user_avatar/community.pix4d.com/daniele_lecci/32/9493_2.png) [@Daniele\_Lecci](https://community.pix4d.com/u/Daniele_Lecci)\ **Post date:** [March 14, 2024, 4:49pm UTC](https://community.pix4d.com/t/program-doesnt-open/21553/22 "2024-03-14T16:49:46Z")
Correct, it won’t be affected. You just need to log in again with your credentials holding the license. The license is not stored on your device but on our servers. Once you log in, the license is detected, and you can use PIX4Dmapper. If there are many users, it would be ideal to let an admin uninstall and reinstall for every user. Let me know how it goes. ---
**Author:** ![saurabh.shukla](https://avatars.discourse-cdn.com/v4/letter/s/bb73d2/32.png) [@saurabh.shukla](https://community.pix4d.com/u/saurabh.shukla)\ **Post date:** [March 15, 2024, 9:55am UTC](https://community.pix4d.com/t/program-doesnt-open/21553/23 "2024-03-15T09:55:22Z")
I uninstalled and then reinstallled the program, but now it says that there is some problem with the license. I have attached the screenshot. Can you please help me. Also, how can the administrator install the program for other users ---
**Author:** ![saurabh.shukla](https://avatars.discourse-cdn.com/v4/letter/s/bb73d2/32.png) [@saurabh.shukla](https://community.pix4d.com/u/saurabh.shukla)\ **Post date:** [March 15, 2024, 10:55am UTC](https://community.pix4d.com/t/program-doesnt-open/21553/24 "2024-03-15T10:55:50Z")
![WhatsApp Image 2024-03-15 at 10.50.44 (1)](https://global.discourse-cdn.com/pix4d/original/2X/e/ef6473cf14f5a6755b3a6bf5909857e007a51911.jpeg) ---
**Author:** ![saurabh.shukla](https://avatars.discourse-cdn.com/v4/letter/s/bb73d2/32.png) [@saurabh.shukla](https://community.pix4d.com/u/saurabh.shukla)\ **Post date:** [March 15, 2024, 10:56am UTC](https://community.pix4d.com/t/program-doesnt-open/21553/25 "2024-03-15T10:56:21Z")
![WhatsApp Image 2024-03-15 at 10.50.44](https://global.discourse-cdn.com/pix4d/original/2X/3/3cf0ce192f7739aa1b319edef0e0d40d02fa537f.jpeg) ---
**Author:** ![Jose.Arnaudo](https://sea2.discourse-cdn.com/pix4d/user_avatar/community.pix4d.com/jose.arnaudo/32/5966_2.png) [@Jose.Arnaudo](https://community.pix4d.com/u/Jose.Arnaudo)\ **Post date:** [March 19, 2024, 11:47am UTC](https://community.pix4d.com/t/program-doesnt-open/21553/26 "2024-03-19T11:47:05Z")
this is because you logged in on another device. Make sure you log out. I did it for you ---
**Author:** ![Daniele\_Lecci](https://sea2.discourse-cdn.com/pix4d/user_avatar/community.pix4d.com/daniele_lecci/32/9493_2.png) [@Daniele\_Lecci](https://community.pix4d.com/u/Daniele_Lecci)\ **Post date:** [March 25, 2024, 4:14pm UTC](https://community.pix4d.com/t/program-doesnt-open/21553/27 "2024-03-25T16:14:09Z")
Hi @saurabh.shukla Also, make sure that you are using PIX4Dmapper version 4.8.4 (or below). As your Support and Upgrade (S&U) has expired, you can’t use the most recent version. Let me know if this works. ---
**Author:** ![saurabh.shukla](https://avatars.discourse-cdn.com/v4/letter/s/bb73d2/32.png) [@saurabh.shukla](https://community.pix4d.com/u/saurabh.shukla)\ **Post date:** [March 25, 2024, 4:37pm UTC](https://community.pix4d.com/t/program-doesnt-open/21553/28 "2024-03-25T16:37:02Z")
Hi @Daniele_Lecci , Yes that was the problem. I did, and installed for all the users now. Thank you very much. Is it possible to upgrade this license for Pix4D Fields instead of Pix4D mapper? ---
**Author:** ![Daniele\_Lecci](https://sea2.discourse-cdn.com/pix4d/user_avatar/community.pix4d.com/daniele_lecci/32/9493_2.png) [@Daniele\_Lecci](https://community.pix4d.com/u/Daniele_Lecci)\ **Post date:** [March 26, 2024, 2:38pm UTC](https://community.pix4d.com/t/program-doesnt-open/21553/29 "2024-03-26T14:38:11Z")
Hi @saurabh.shukla , Thank you for your reply. I’m happy to hear that this solved the issue. Regarding the license switch to PIX4Dfields, please contact your reseller or directly the Pix4D sales team here: > **[Talk to sales](https://www.pix4d.com/contact/)** > > Contact the wonderful people at Pix4D. We're here to help! ---
**Author:** ![dawazangpo2](https://avatars.discourse-cdn.com/v4/letter/d/dec6dc/32.png) [@dawazangpo2](https://community.pix4d.com/u/dawazangpo2)\ **Post date:** [February 15, 2025, 4:59am UTC](https://community.pix4d.com/t/program-doesnt-open/21553/30 "2025-02-15T04:59:08Z")
Hello, I have a problem of not being able to launch my pix4D mapper 4.7.5 software on my laptop. I am attaching herewith by event log file. Could the technical support team look at the file and help resolve issue please [event\_pix4D.zip](https://community.pix4d.com/uploads/short-url/cxEviIHax5lnWsl7nnVxS6AQVPr.zip) (2.5 MB) ---
**Author:** ![dawazangpo2](https://avatars.discourse-cdn.com/v4/letter/d/dec6dc/32.png) [@dawazangpo2](https://community.pix4d.com/u/dawazangpo2)\ **Post date:** [February 15, 2025, 8:10am UTC](https://community.pix4d.com/t/program-doesnt-open/21553/31 "2025-02-15T08:10:18Z")
I could solve the issue…I had to uninstall the PostgreSQL bundle and it work [Previous page](https://community.pix4d.com/t/program-doesnt-open/21553.md?page=1)