What version of windows do I have?

In order to know what version of Windows Operating system you are using the best way is to check it via command line, open CMD and type systeminfo,

C:\Users\Code2care> systeminfo
Host Name:                 LAPTOP-3XXXXXX
OS Name:                   Microsoft Windows 10 Home Single Language
OS Version:                10.0.18363 N/A Build 18363
OS Manufacturer:           Microsoft Corporation
OS Configuration:          Standalone Workstation
OS Build Type:             Multiprocessor Free
Registered Owner:          Code2care
Registered Organization:   N/A
Product ID:                00327-XXXXX-XXXXX-XXXXX
Original Install Date:     24-06-2020, 9.54.52 PM
System Boot Time:          17-10-2020, 3.38.30 PM
System Manufacturer:       ASUSTeK COMPUTER INC.
System Model:              VivoBook 15_ASUS Laptop X507UF
System Type:               x64-based PC
Processor(s):              1 Processor(s) Installed.
                           [01]: Intel64 Family 6 Model 142 Stepping 10 GenuineIntel ~16
BIOS Version:              American Megatrends Inc. X507UF.304, 22-05-2019
Windows Directory:         C:\WINDOWS
System Directory:          C:\WINDOWS\system32
Boot Device:               \Device\HarddiskVolume1
System Locale:             en-us;English (United States)
Input Locale:              00004009
Time Zone:                 (UTC-06:00)
Total Physical Memory:     8,074 MB
Available Physical Memory: 3,760 MB
Virtual Memory: Max Size:  9,354 MB
Virtual Memory: Available: 3,780 MB
Virtual Memory: In Use:    5,574 MB
Page File Location(s):     C:\pagefile.sys
Domain:                    WORKGROUP
Logon Server:              \\LAPTOP-3XXXXXXXX
Hotfix(s):                 9 Hotfix(s) Installed.
                           [01]: KB4576484
                           [02]: KB4497165
                           [03]: KB4517245
                           [04]: KB4560959
                           [05]: KB4561600
                           [06]: KB4565554
                           [07]: KB4569073
                           [08]: KB4576751
                           [09]: KB4574727
Network Card(s):           1 NIC(s) Installed.
                           [01]: Intel(R) Dual Band Wireless-AC 8265
                                 Connection Name: Wi-Fi
                                 DHCP Enabled:    Yes
                                 DHCP Server:     192.168.0.1
                                 IP address(es)
                                 [01]: 192.168.0.108
                                 [02]: XXXX::XXXX:XXXX:XXXX:XXXX
Hyper-V Requirements:      VM Monitor Mode Extensions: Yes
                           Virtualization Enabled In Firmware: Yes
                           Second Level Address Translation: Yes
                           Data Execution Prevention Available: Yes

You will see a lot of information, but what we are interested in is OS Name and OS Version

OS Name: Microsoft Windows 10 Home Single Language
OS Version: 10.0.18363 N/A Build 18363