# Attach Window activity si missing

**URL:** <https://forum.uipath.com/t/attach-window-activity-si-missing/388294>\
**Category:** Activities\
**Tags:** question, uiautomation, activities\
**Created:** [January 4, 2022, 10:58am UTC](https://forum.uipath.com/t/attach-window-activity-si-missing/388294 "2022-01-04T10:58:28Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![tomaz](https://sea2.discourse-cdn.com/uipath/user_avatar/forum.uipath.com/tomaz/32/263305_2.png) [@tomaz](https://forum.uipath.com/u/tomaz)\
**Post date:** [January 4, 2022, 10:58am UTC](https://forum.uipath.com/t/attach-window-activity-si-missing/388294/1 "2022-01-04T10:58:28Z")

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Hello, I am trying to make a WorkFlow for witch I need Attach Window activity. But I can’t found it. I have a latest UiPath.UIAutomation package instal, but activity is missing. Pls Help

 ![image](https://global.discourse-cdn.com/uipath/original/4X/5/3/7/537ee3fb7e99ca975b80fe60822e848ce84668d4.png)

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**Author:** ![arivu96](https://avatars.discourse-cdn.com/v4/letter/a/ebca7d/32.png) [@arivu96](https://forum.uipath.com/u/arivu96)\
**Post date:** [January 4, 2022, 11:01am UTC](https://forum.uipath.com/t/attach-window-activity-si-missing/388294/2 "2022-01-04T11:01:39Z")

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Hi @tomaz ,  
please install or update \*\*Uipath.UIAutomation.activities \*\* and try again.

Regards,  
Arivu

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**Author:** ![THIRU\_NANI](https://sea2.discourse-cdn.com/uipath/user_avatar/forum.uipath.com/thiru_nani/32/317561_2.png) [@THIRU\_NANI](https://forum.uipath.com/u/THIRU_NANI)\
**Post date:** [January 4, 2022, 11:08am UTC](https://forum.uipath.com/t/attach-window-activity-si-missing/388294/3 "2022-01-04T11:08:04Z")

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Hi!

Can you turn off the modern design experience inside the project panel

 ![Modern](https://global.discourse-cdn.com/uipath/original/4X/b/5/a/b5aa267e5dd3efe4af0c581479a54a0db65c0d02.jpeg)

Regards,  
NaNi

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**Author:** ![system](https://sea2.discourse-cdn.com/uipath/user_avatar/forum.uipath.com/system/32/182466_2.png) [@system](https://forum.uipath.com/u/system)\
**Post date:** [January 7, 2022, 11:11am UTC](https://forum.uipath.com/t/attach-window-activity-si-missing/388294/5 "2022-01-07T11:11:02Z")

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Closed on January 7, 2022, 11:11am UTC

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