Here you go... copy-pasted from my "unknown browsers" stats in the last hour... as you can see there are lots of Classic users using all sorts of Windows versions.
NB: I put little XXXX over inks and email addresses that some are carrying.
2ip.ru_CMS_Detector_(xxxxx)
The_Classic_Browser_v1.7_running_under_Windows_7.0
The_Classic_Browser_1.7_Windows_NT_5.1
newspaper/0.2.0
SafeDNSBot_(xxxxxxxt)
CakePHP
The_Classic_Browser_v1.7_running_under_Windows_10.0
BUbiNG_(_xxxxxxx)
The_Classic_Browser_v1.5_running_under_Windows_10.0
\xe3\x83\xbd(^\xd0\x94^)\xef\xbe\x89
0.39197847759351134
The_Classic_Browser_1.5_Windows_NT_5.1
The_Classic_Browser_1.7_Windows_NT_6.1;_WOW64
The_Classic_Browser_1.7_Windows_NT_10.0;_WOW64
The_Classic_Browser_1.6_Windows_NT_5.1
Domain_Re-Animator_Bot_(xxxxxxx)_-_sxxxxxxm
Snattei/0.11
aria2/1.19.0
UCWEB/2.0_(MIDP-2.0;_U;_Adr_4.4.2;_en-US;_GT-S5310I)_U2/1.0.0_UCBrowser/10.7.8.806_U2/1.0.0_Mobile
The_Classic_Browser_v1.6_running_under_Windows_7.0
IDA