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The latest Adobe Flash update (note that the update has been included also in Microsoft Update) with v 27.0.0.170 make the vSphere Web Client no more usable with all browsers.

With Chrome and Firefox you will recognize that the Flash plugin hangs, in Internet Explorer you will have a simple generic error and the browser that will close.

Actually there isn’t any recent VMware KB, but according with Adobe forum (see this post) the only solution is just go back to previous version v 27.0.0159. Just remove your new version and install the old one.

Previous version could be downloaded from Adobe site at this page: https://helpx.adobe.com/flash-player/kb/archived-flash-player-versions.html. Just get this file: (Released 10/10/2017) Flash Player 27.0.0.159 (405 MB).

Note that if the Flash update cames from Microsoft Update you first need to remove it from the Control Panel:

To check your Flash version from your browser, you can simple use this page: https://helpx.adobe.com/it/flash-player.html

To fix only Chome plugin on Windows, if you still have the previous one, navigate to %USERPROFILE%\AppData\Local\Google\Chrome\User Data\PepperFlash and locate the folder 27.0.0.170 with the new Flash version. If you still have other previous folder, just delete the 27.0.0.170 folder. This should fix the issue.

Plese note that the new version of Flash solve some issues (see this page), so keep in mind also the security before downgrade any components. Using a ThinApp or a portable version of your browser only for admin task could be a interesting compromize.

Some important updates from 19 October 2017:

Andrea MauroAbout Andrea Mauro (2532 Posts)

Virtualization & Cloud Architect.
VMUG IT Co-Founder and board member. VMware VMTN Moderator and vExpert (2010, 2011, 2012, 2013, 2014, 2015). PernixPro 2014. Dell TechCenter Rockstar 2014. MVP 2014.
Several certifications including: VCDX-DCV, VCP-DCV/DT/Cloud, VCAP-DCA/DCD/CIA/CID/DTA/DTD, MCSA, MCSE, MCITP, CCA, NPP.


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