Viewing RSSI value using wireshark windows version

The first thing that you should do is either

• download and install Microsoft Network Monitor, use it to capture traffic, and either read its captures in Network Monitor or save them and read them in Wireshark;
• buy an AirPcap adapter and use it to capture traffic in Wireshark

WinPcap doesn't support capturing in monitor mode, or capturing with any radio information such as signal strength, with regular 802.11 adapters, and Wireshark uses WinPcap for traffic capture on Windows, so Wireshark doesn't support getting radio information when capturing on Windows unless you have an AirPcap adapter.

(I guess a third thing you could do is "download some version of Linux or *BSD and install it on your machine", but that's probably a less convenient alternative. :-))

Note, by the way, that the "RSSI" value might not show up in a column in the packet list, and, in the packet details, might be a signed value, either in decibels from some arbitrary reference point (dB) or in decibels from 1 milliwatt (dBm), rather than the unsigned "RSSI" values referred to by some places in the IEEE 802.11 specification. Those unsigned values might not be available on many platforms (and are not, as far as I know, any more useful than the decibel values).