Below all the ways to convert PC to thin client
1- VDI Blaster (License cost 24$ per desktop )
converts PCs into secure, centrally manageable thin client desktops extending investments in PCs. A software tool that helps maximize the useful life of existing computer, VDI Blaster offers the benefits of a thin client, enabling enterprises of all sizes to recognize the value of thin client computing. PCs can easily be converted via USB key or a network install, instantly converting PCs to thin clients.
VDI Blaster can be used without taking the risk of erasing your existing Windows installation. To install VDI Blaster, just execute the installer on the PC you want to repurpose. After installation, the PC reboots by default in thin client mode, running Devon IT’s Terminal Operating System (DeTOS™).
In this mode repurposed PCs can be managed with Devon IT’s Thin Client Management Software. But it is still possible to reboot repurposed PCs in Windows XP mode and uninstall DeTOS to return the PC to its initial configuration (with Windows XP as the only OS).
http://www.devonit.com/wp-content/uploads/2015/09/Lenovo-VLH_Web.pdf
http://www.devonit.com/wp-content/uploads/2015/09/VDI_Blaster_Web.pdf
https://www.youtube.com/watch?v=Wf0Ob55b4z4
2- Thinstation (open source )
Thinstation is a basic and small, yet very powerful, Open Source thin client operating system supporting all major connectivity protocols: Citrix ICA, NoMachine NX, 2X ThinClient, Microsoft Windows terminal services (RDP, via RDesktop), VMWare Horizon View, Cendio ThinLinc, Tarantella, X, telnet, tn5250, VMS terminal and SSH (No special configuration of the application servers is needed to use Thinstation).
Thinstation is mainly intended for schoolroom, office, company or department use, but can be used at home (eg. for a silent PC in the bedroom that 'runs' XP on your workstation in the back room).
While Thinstation is based on Linux, users may actually never see Linux at all. If you decide to connect directly to a Microsoft Windows, Citrix or Unix server, the user will feel that they are running directly on the server. But, you can also have a local Desktop interface (with a local Browser & other tools).
Thinstation supports a Microsoft Windows-only environment and REQUIRES NO UNIX/Linux KNOWLEDGE.
https://www.youtube.com/watch?v=7lwOOjdpaig
https://www.youtube.com/watch?v=XA2Gap8DFVk
3- Cult
cult is an Open Source software-only network bootable thin client Operating System that provides a complete solution for thin clients, PCs or virtualized hardware
4- Dell Wyse Wyse PC Extender
Reconfigure select legacy PCs as highly functional thin clients for secure and cost-effective desktop virtualization , it would install Wyse thin OS into old desktops which cost about 50$ per device
