# Runtime error r6025 pure virtual function call **URL:** \ **Category:** Windows\ **Created:** [August 16, 2020, 2:48pm UTC](https://devforum.zoom.us/t/runtime-error-r6025-pure-virtual-function-call/27300 "2020-08-16T14:48:15Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![mohdahmed](https://avatars.discourse-cdn.com/v4/letter/m/f4b2a3/32.png) [@mohdahmed](https://devforum.zoom.us/u/mohdahmed)\ **Post date:** [August 16, 2020, 2:48pm UTC](https://devforum.zoom.us/t/runtime-error-r6025-pure-virtual-function-call/27300/1 "2020-08-16T14:48:15Z")
**Description** Microsoft Visual C++ Runtime Library error **R6025 pure virtual function call** error shows up in windows sdk demo project during chat. **Which version?** Knowing the version can help us to identify your issue faster. **To Reproduce(If applicable)** Steps to reproduce the behavior: 1. After SDK Auth, Join meeting without login using MeetingID, Password, Name. 2. Click on Show Chat button. 3. Error randomly pops up. **Screenshots** ![zoom_windows_sdk_error](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/2X/7/70b3c3db662282c123b0279c6918559328351634.png) **Device (please complete the following information):** - PC - Windows 10 **Additional context** The problem always occurred during screen/video shared by host. Although, didn’t try without screen/video being shared. ---
**Author:** ![mohdahmed](https://avatars.discourse-cdn.com/v4/letter/m/f4b2a3/32.png) [@mohdahmed](https://devforum.zoom.us/u/mohdahmed)\ **Post date:** [August 19, 2020, 12:52pm UTC](https://devforum.zoom.us/t/runtime-error-r6025-pure-virtual-function-call/27300/2 "2020-08-19T12:52:57Z")
Hi, Any update on this issue? Regards, Muhammad Ahmed ---
**Author:** ![carson.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/carson.zoom/32/785_2.png) [@carson.zoom](https://devforum.zoom.us/u/carson.zoom)\ **Post date:** [August 20, 2020, 5:42am UTC](https://devforum.zoom.us/t/runtime-error-r6025-pure-virtual-function-call/27300/3 "2020-08-20T05:42:10Z")
Hi @mohdahmed, Thanks for the post. What is the SDK version you are using? Could you provide the SDK log and the dump (.dmp) files so that we could further investigate? We have tried to follow the steps you are mentioning and we are not able to experience the issue. Thanks! ---
**Author:** ![yoyomoder](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/yoyomoder/32/18854_2.png) [@yoyomoder](https://devforum.zoom.us/u/yoyomoder)\ **Post date:** [November 16, 2020, 4:05pm UTC](https://devforum.zoom.us/t/runtime-error-r6025-pure-virtual-function-call/27300/4 "2020-11-16T16:05:12Z")
i encountered the same problem not have fixed it yet -fyi i have a ryzen processor maybe its a stability isuue thanks in adnvance ---
**Author:** ![samuel.lechner](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/samuel.lechner/32/19346_2.png) [@samuel.lechner](https://devforum.zoom.us/u/samuel.lechner)\ **Post date:** [November 26, 2020, 10:34am UTC](https://devforum.zoom.us/t/runtime-error-r6025-pure-virtual-function-call/27300/5 "2020-11-26T10:34:06Z")
got the same issues, also have a ryzen cpu ---
**Author:** ![Michael\_Condon](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/michael_condon/32/13543_2.png) [@Michael\_Condon](https://devforum.zoom.us/u/Michael_Condon)\ **Post date:** [December 10, 2020, 7:10pm UTC](https://devforum.zoom.us/t/runtime-error-r6025-pure-virtual-function-call/27300/6 "2020-12-10T19:10:09Z")
Hey @samuel.lechner & @yoyomoder, Thanks for using the dev forum! Can you provide the SDK version and SDK log so that we can troubleshoot? Thanks! Michael ---
**Author:** ![samuel.lechner](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/samuel.lechner/32/19346_2.png) [@samuel.lechner](https://devforum.zoom.us/u/samuel.lechner)\ **Post date:** [December 10, 2020, 7:44pm UTC](https://devforum.zoom.us/t/runtime-error-r6025-pure-virtual-function-call/27300/7 "2020-12-10T19:44:22Z")
Hi, I am using the win10 desktop version 5.4.3 (58891.1115). Idk how I can exoprt my sdk log or even where I find it? So my issues are basically that sometimes the programm crashed and I get an error alert saying the exact same like the sc posted above. I googled a bit and found out this might be due to graphic driver issues so I reinstalled them. i have a ryzen 7 3700x and a rtx 2070. tell me if you need more info. thx ---
**Author:** ![DaniMS93](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/danims93/32/20058_2.png) [@DaniMS93](https://devforum.zoom.us/u/DaniMS93)\ **Post date:** [December 11, 2020, 8:35pm UTC](https://devforum.zoom.us/t/runtime-error-r6025-pure-virtual-function-call/27300/8 "2020-12-11T20:35:17Z")
i have the same problem. Ryzen 7 3700x and RTX 3070. same error ---
**Author:** ![dats\_liao](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/dats_liao/32/464_2.png) [@dats\_liao](https://devforum.zoom.us/u/dats_liao)\ **Post date:** [December 12, 2020, 2:34pm UTC](https://devforum.zoom.us/t/runtime-error-r6025-pure-virtual-function-call/27300/9 "2020-12-12T14:34:42Z")
hey @samuel.lechner @yoyomoder@DaniMS93 Thanks for your feedback. If it is ok for you, Could you help us to save a dump when reproducing this issue again? steps for save dump: 0.Please don’t close the error dialog 1.Open Windows Task Manager 2.Select the Details tab 3.Right-click the desired process 4.Select Create Dump File 5.Wait until a notification is presented for the successful creation of the dump file A dialogue will appear with the location of the saved dump file After the file is created, go to the folder specified in the Dumping Process dialog in Windows Explorer to access the dump (.dmp) file Please compress the .dmp file and please send it to us if it is ok for you. Thanks Dats ---
**Author:** ![DaniMS93](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/danims93/32/20058_2.png) [@DaniMS93](https://devforum.zoom.us/u/DaniMS93)\ **Post date:** [December 12, 2020, 5:13pm UTC](https://devforum.zoom.us/t/runtime-error-r6025-pure-virtual-function-call/27300/10 "2020-12-12T17:13:09Z")
im sory i dont konw how to do it. i justa have this screenshot ![Capturar](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/c/9/c91d3526ad047824ad60f3102a3ee56605247f65.png) ---
**Author:** ![samuel.lechner](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/samuel.lechner/32/19346_2.png) [@samuel.lechner](https://devforum.zoom.us/u/samuel.lechner)\ **Post date:** [December 14, 2020, 11:05am UTC](https://devforum.zoom.us/t/runtime-error-r6025-pure-virtual-function-call/27300/11 "2020-12-14T11:05:35Z")
Hi! [Here](https://drive.google.com/open?id=1IykFqEaNi2Ajq3Nh0gg3oJNKTHZ6Gcxo) are the files required. Tell me as soon as you have downloaded them, so that I can remove the link. Thanks. ---
**Author:** ![DaniMS93](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/danims93/32/20058_2.png) [@DaniMS93](https://devforum.zoom.us/u/DaniMS93)\ **Post date:** [December 16, 2020, 5:04pm UTC](https://devforum.zoom.us/t/runtime-error-r6025-pure-virtual-function-call/27300/12 "2020-12-16T17:04:53Z")
Hello again. i run the program ccleaner and my Zoom meetings its work now. thanks for the help. have a nice day ---
**Author:** ![DaniMS93](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/danims93/32/20058_2.png) [@DaniMS93](https://devforum.zoom.us/u/DaniMS93)\ **Post date:** [December 18, 2020, 8:14pm UTC](https://devforum.zoom.us/t/runtime-error-r6025-pure-virtual-function-call/27300/13 "2020-12-18T20:14:15Z")
well. dont work hehe. so i use the program you said and i send the files thanks. please help. because i use a lot zoom. // Link removed. ---
**Author:** ![carson.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/carson.zoom/32/785_2.png) [@carson.zoom](https://devforum.zoom.us/u/carson.zoom)\ **Post date:** [December 22, 2020, 1:27am UTC](https://devforum.zoom.us/t/runtime-error-r6025-pure-virtual-function-call/27300/14 "2020-12-22T01:27:53Z")
Hi @DaniMS93, Thank you very much for providing the dump files, really appreciate it. We found out that this issue is caused by a conflict with the Xtreme Tuner. We are still investigating this and will provide an update once we found out a solution. To protect your dump files, I have hidden the link to your Google Drive. Thank you again for providing the files! ---
**Author:** ![DaniMS93](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/danims93/32/20058_2.png) [@DaniMS93](https://devforum.zoom.us/u/DaniMS93)\ **Post date:** [December 22, 2020, 8:54am UTC](https://devforum.zoom.us/t/runtime-error-r6025-pure-virtual-function-call/27300/15 "2020-12-22T08:54:44Z")
Hello. Ohh ok. For the moment, i uninstall the Extreme tuner. Please tell me if you find a solution. Thank you very much. Have a Nice day Obter o [Outlook para Android](https://aka.ms/ghei36) ---
**Author:** ![jeffreyarciga](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/jeffreyarciga/32/22640_2.png) [@jeffreyarciga](https://devforum.zoom.us/u/jeffreyarciga)\ **Post date:** [February 4, 2021, 11:41am UTC](https://devforum.zoom.us/t/runtime-error-r6025-pure-virtual-function-call/27300/16 "2021-02-04T11:41:44Z")
same… please fix… I also have xtreme tuner installed. ---
**Author:** ![Michael\_Condon](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/michael_condon/32/13543_2.png) [@Michael\_Condon](https://devforum.zoom.us/u/Michael_Condon)\ **Post date:** [February 4, 2021, 8:15pm UTC](https://devforum.zoom.us/t/runtime-error-r6025-pure-virtual-function-call/27300/17 "2021-02-04T20:15:58Z")
Hey @jeffreyarciga, Thanks for using the dev forum! We do not have updates on this issue yet. Will keep you posted. Thanks! Michael ---
**Author:** ![claudio.bernardo](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/claudio.bernardo/32/23920_2.png) [@claudio.bernardo](https://devforum.zoom.us/u/claudio.bernardo)\ **Post date:** [March 2, 2021, 11:12pm UTC](https://devforum.zoom.us/t/runtime-error-r6025-pure-virtual-function-call/27300/18 "2021-03-02T23:12:25Z")
Any news? I can’t uninstall xtreme tuner. ---
**Author:** ![Michael\_Condon](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/michael_condon/32/13543_2.png) [@Michael\_Condon](https://devforum.zoom.us/u/Michael_Condon)\ **Post date:** [March 3, 2021, 9:23pm UTC](https://devforum.zoom.us/t/runtime-error-r6025-pure-virtual-function-call/27300/19 "2021-03-03T21:23:28Z")
Hey @jeffreyarciga, We do not have updates on this issue yet. Will keep you posted. Thanks! Michael ---
**Author:** ![LilyHalliday](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/lilyhalliday/32/24718_2.png) [@LilyHalliday](https://devforum.zoom.us/u/LilyHalliday)\ **Post date:** [March 18, 2021, 1:03pm UTC](https://devforum.zoom.us/t/runtime-error-r6025-pure-virtual-function-call/27300/20 "2021-03-18T13:03:44Z")
I encountered the same problem not have fixed it yet -fyi I have a Ryzen processor maybe its a stability issue thanks in advance [![a blog about miter saw power tools and woodworking projects for woodwrker and carpenters](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/1/a/1ae45cbcf7a71b9bdd94becfd9fc7be4108465c1.png)](http://thebestmitersaw.net/) [Next page](https://devforum.zoom.us/t/runtime-error-r6025-pure-virtual-function-call/27300.md?page=2)