Windows Copy File Slowness over network (Windows 2012, 2016, 2019) in VMware VM (but also RDS, Citrix etc)

Sometimes strange things happen.. like after enabling Windows Defender in a VM instead of other Anti-Virus and after that using a VPN Client (e.g. Pulse Secure) suddenly impacting file copy on network shares. This can be a big pain to troubleshoot. My first thought was Windows Defender doing something on the VPN or network. Because the …

vBeers Noord – Zwolle Edition

There will be a vBeers in Zwolle, the 14th of March 2019, this time in StadsCafe HetRegter! For more information check : and for sign-up (free, but with PYOD (pay your own drinks)), please be welcome 🙂


My name is Johan Dijkstra, I am 37 years old. Currently working as a Senior Consultant for Virtualization in Infrastructure and End User Computing environments. Working with products from VMware, Citrix, Microsoft and other Vendors.

I am also interested in Home Automation (Domoticz), IoT and Electronics



vExpert 2018:


You can contact me by mail  :