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A switch is not supposed to access anything but to forward traffic of machines that wants to access a machine within your LAN. In short: a switch is a Layer-2-Relay (See the OSI- or TCP/IP reference model for an explanation of networking layers).
I now assume, that you want to be able to access the webserver on your windows pc which is connected to that switch.
Usually, regardless of whether the switch is managed or not, it should forward traffic to a device without configuration.
To achieve this, your client and your windows-pc must be in the same LAN (say in the same IP-subnet) and either directly or indirectly connected to the switch.
If client and server are not within the same IP-subnet, you may have to configure the switch's routing. Unfortunately, I dont know how to do this on your device.
Also, make sure that the windows firewall is not blocking traffic to your webserver.
Note: Switches supporting VLAN's are Layer-3 capable. Otherwise communication between computers across (V)LAN's would be impossible.
To gain a solid knowledge of computer-networking, I recommend Cisco's CCENT Certification Guide. Even if you don't want to get the certificate it provides great explanations of networking fundemantals for people who have never been in touch with computer networking.