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Select on screen option highlights the control in a different position in screen.

Select on screen option and Highlighting the control option is not working properly even after setting the browser as well as system's display settings to 100%. This happens mostly with windows 10.


When scanning a control using Select on screen option, control will be highlighted in a different position in screen even after setting the browser and system's display settings to 100%.




Step 1: First step is to confirm whether the browser and system zoom settings is adjusted to 100%

Refer :


Step 2: If Step 1 does not solves the issue, the following process might solve the issue.

Note: If you face this issue in a remote machine, please follow the below steps in your local machine as remote machine adopts the Display settings from the local machine. Also, after performing the steps, you will need to sign out and sign in to the remote machine.

1. Open display setting. 

2. Scale and layout -> Advanced scaling settings.

3. Toggle the button 'Let Windows try to fix apps so they're not blurry' to On.

4. Enter the custom scaling size as 100 and click on Apply.



5. Click on Sign Out now. You'll be signed out of your account. Sign in again.

  (Note: Please save your works before clicking Sign Out now option. Clicking this option might result in closing all the opened applications) 

6. After you signed into the account again, the Scale and Layout is set to some random zoom level. Also, check if the browser zoom level is set to 100%

7. Now scan the application using Tosca and try to use Select on screen option. Now you should be able to use Select on screen and Highlight control option without any trouble.

Additional Information: Changing resolution will not affect Select on screen's functionality after performing these steps. You can change the resolution which suits best for viewability. But make sure that, the browser's zoom level is at 100% before performing X-scan. 

1 0

Debadeep Pharikal

Created: 2019-07-05 03:29:13

Thanks for the solution provided.It helped me fixing long pending issue. 


Balaji Durai

2019-07-06 11:13:44

Thanks for your valuable feedback Debadeep


1 0

Nidhi Bihani

Created: 2019-07-23 01:23:25

Thanks for the solution, it worked.

Balaji Durai

2019-07-29 09:03:09

Hi Nidhi,

Thanks for letting us know.

0 0

Balaji Durai

Created: 2019-07-29 11:02:36

Hi Nidhi,

Thanks for letting us know.

1 0

Sourajeet Lahiri

Created: 2019-10-28 10:32:15

Thanks for the info Balaji!

Issue resolved.

0 0

Dhruvi Agrawal

Created: 2020-02-03 10:23:48

Hello, Thanks for the solution, but my issue still persist, i have followed the above steps, but still selecting option on screen is highlights the control in a different position. please help me with this

Balaji Durai

2020-02-03 09:27:54

Once the steps are followed, please check the browser zoom level for 100%

Balaji Durai

2020-02-03 09:29:00

If the issue still persists, please create an incident from support portal and we are happy to assist you further.


1 0

Rahul Bakshi

Created: 2020-04-12 12:20:49

Working fine thanks.

1 0

Dharmalingam Chandrakumar

Created: 2020-04-13 18:31:29

Wow, this did the magic. Thank you.


1 0

Lisa li

Created: 2020-05-09 04:26:04

My issue was resolved, thanks

1 0

Guilherme Concha Arcienega Silva

Created: 2020-07-07 23:48:19

I don't have the words to thank you Balaji Durai. It worked here too.

Balaji Durai

2020-07-08 09:38:23

You're always welcome. Thanks for writing to let us know the status. We're happy to hear that it worked for you.




1 0

Srirama Kancharla

Created: 2021-05-19 10:35:44

Hi Balaji, I am seeing this problem while switching monitors.

When I connect to the external monitor and switch to laptop or vice versa and I am having this problem. In this instance I will have to restart the machine with the working monitor connected. Is there a work around?

Please suggest.