
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
2022-01-20 03:23 AM
I have encountered about 2 black boxes appearing in my presentation during screen sharing since Jan 2022. One blackbox appeared near the top and the other at the bottom. My laptop uses Windows 10 and I have updated the latest software. I have done all the hacks recommended in the Zoom web page, including changing the NVIDIA settings, video settings and screen sharing settings. Yet, I still have the same problem with the black boxes. Please help to resolve this problem. Thank you!
Solved! Go to Solution.

- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
2024-09-17 11:17 AM
Hi, just responding to this to help future people who come to this page. Un-checking the optimize video button didn't work for me, but changing the screen capture mode setting did! Here's what I did:
- Open Zoom meeting settings
- Go to "Share Screen"
- Click on "Advanced"
- Find the "Screen capture mode" settings
- Select "Secure share with window filtering"
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
2022-03-29 03:56 PM
Hi @sumitra ! I know it has been a while since you initially posted, but I want to make sure you receive assistance. Are you still having this issue? If so, does this issue occur when using a different device, or is it just on the current device running Windows 10?
Moderator
Zoom Community Team

- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
2022-11-20 11:31 PM
i have a similar issue
i am also on windows 10
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
2022-11-23 09:51 AM

- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
2022-11-23 10:17 AM
optimize for video button was the problem
when it was turned on the black box appeared and when turned off the box disappeared.
i was lucky ot have a patient audinece that let me toggle back and forth
thanks
- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
2022-11-23 10:41 AM
Thank you so much for letting us know! Happy to hear that it solved your issue.

- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
2024-09-16 06:03 PM
I am also having this issue and am unclear of the optimize video button? Where can I find that?

- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
2024-09-17 11:17 AM
Hi, just responding to this to help future people who come to this page. Un-checking the optimize video button didn't work for me, but changing the screen capture mode setting did! Here's what I did:
- Open Zoom meeting settings
- Go to "Share Screen"
- Click on "Advanced"
- Find the "Screen capture mode" settings
- Select "Secure share with window filtering"

- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
2024-10-07 12:39 PM
Thanks! that's the only solution that worked for me as well

- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
2024-11-13 06:10 AM
but then all text (Hebrew) is showed in mirror mode

- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
2024-11-17 05:36 AM
Thank you soooo much! I have been working on this for over a week. I tried everything and even bought a new laptop and yet this is the fix!! I am so grateful.

- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
2025-02-28 01:41 AM
I can't find the settings as you wrote here. Can I get help with this? I'm attaching a screenshot. Thanks!https://drive.google.com/file/d/1lUCzEumAICATgTcGPGPsb87y07jbhByP/view?usp=drive_link

- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
2024-10-09 03:17 AM
Same here. had a similar black box problem. Changes screen capture mode to secure share with window filtering. and this black box problem disappeared.

- Mark as New
- Bookmark
- Subscribe
- Mute
- Subscribe to RSS Feed
- Permalink
- Report Inappropriate Content
2024-10-09 03:45 AM
Apparently, the slide show is now not working
