Top file variants for usbser.sys

Users	Filename	Product	Company	Version	Variant
28.64%	%SYSDIR% \ DRIVERS \ usbser.sys	Microsoft® Windows® Operating System	Microsoft Corporation	6.1.7601.18247	21164528
23.75%	%SYSDIR% \ DRIVERS \ usbser.sys	Microsoft® Windows® Operating System	Microsoft Corporation	6.1.7601.18247	21117687
10.54%	%SYSDIR% \ DRIVERS \ usbser.sys	Microsoft® Windows® Operating System	Microsoft Corporation	5.1.2600.6442	21133834
9.58%	%SYSDIR% \ DRIVERS \ usbser.sys	Microsoft® Windows® Operating System	Microsoft Corporation	5.1.2600.5512	1210550
6.23%	%SYSDIR% \ DRIVERS \ usbser.sys	Microsoft® Windows® Operating System	Microsoft Corporation	6.3.9600.16384	21310976
5.8%	%SYSDIR% \ DRIVERS \ usbser.sys	Microsoft® Windows® Operating System	Microsoft Corporation	6.1.7601.17514	1217445
4.74%	%SYSDIR% \ DRIVERS \ usbser.sys	Microsoft® Windows® Operating System	Microsoft Corporation	6.1.7601.17514	1165164
2.44%	%SYSDIR% \ DRIVERS \ usbser.sys	Microsoft® Windows® Operating System	Microsoft Corporation	6.1.7600.16385	1207719
1.39%	%SYSDIR% \ DRIVERS \ usbser.sys	Microsoft® Windows® Operating System	Microsoft Corporation	5.1.2600.2180	1218009
1.1%	%SYSDIR% \ DRIVERS \ usbser.sys	Microsoft® Windows® Operating System	Microsoft Corporation	6.3.9600.17480	29738731
0.91%	%SYSDIR% \ DRIVERS \ usbser.sys	Microsoft® Windows® Operating System	Microsoft Corporation	6.3.9600.16384	22358635
0.86%	%SYSDIR% \ DRIVERS \ usbser.sys	Microsoft® Windows® Operating System	Microsoft Corporation	6.1.7600.16385	1258437
0.77%	%SYSDIR% \ DRIVERS \ usbser.sys	Microsoft® Windows® Operating System	Microsoft Corporation	6.2.9200.16702	21254616
0.53%	%SYSDIR% \ DRIVERS \ usbser.sys	Microsoft® Windows® Operating System	Microsoft Corporation	6.0.6000.16386	1284257
0.48%	%SYSDIR% \ DRIVERS \ usbser.sys	Microsoft® Windows® Operating System	Microsoft Corporation	6.0.6002.18927	21972043
0.38%	%SYSDIR% \ DRIVERS \ usbser.sys	Microsoft® Windows® Operating System	Microsoft Corporation	6.2.9200.16697	23284032
0.24%	%SYSDIR% \ DRIVERS \ usbser.sys	Microsoft® Windows® Operating System	Microsoft Corporation	6.0.6002.23204	21338941
0.19%	%SYSDIR% \ DRIVERS \ usbser.sys	Microsoft® Windows® Operating System	Microsoft Corporation	10.0.9926.0	30664056
0.19%	%SYSDIR% \ DRIVERS \ usbser.sys	Microsoft® Windows® Operating System	Microsoft Corporation	6.2.9200.16384	13423956
0.14%	%SYSDIR% \ DRIVERS \ usbser.sys	Microsoft® Windows® Operating System	Microsoft Corporation	6.4.9841.0	27920673
0.14%	%SYSDIR% \ DRIVERS \ usbser.sys	Microsoft® Windows® Operating System	Microsoft Corporation	6.3.9600.16384	25240426
0.14%	%SYSDIR% \ DRIVERS \ usbser.sys	Microsoft® Windows® Operating System	Microsoft Corporation	6.4.9860.0	28689988
0.1%	%SYSDIR% \ DRIVERS \ usbser.sys	Microsoft® Windows® Operating System	Microsoft Corporation	6.1.7600.20576	7097141
0.1%	%SYSDIR% \ DRIVERS \ usbser.sys	Microsoft® Windows® Operating System	Microsoft Corporation	6.3.9600.17480	30475078
0.05%	%SYSDIR% \ DRIVERS \ usbser.sys	Microsoft® Windows® Operating System	Microsoft Corporation	5.2.3790.3959	2323056
0.05%	%SYSDIR% \ DRIVERS \ usbser.sys	Microsoft® Windows® Operating System	Microsoft Corporation	5.1.2600.2180	24596361
0.05%	%SYSDIR% \ DRIVERS \ usbser.sys	Microsoft® Windows® Operating System	Microsoft Corporation	6.3.9431.0	20026042
0.05%	%SYSDIR% \ DRIVERS \ usbser.sys	Microsoft® Windows® Operating System	Microsoft Corporation	6.1.7601.17514	23918211
0.05%	%SYSDIR% \ DRIVERS \ usbser.sys	Microsoft® Windows® Operating System	Microsoft Corporation	6.0.6000.16386	3207986
0.05%	%SYSDIR% \ DRIVERS \ usbser.sys	Microsoft® Windows® Operating System	Microsoft Corporation	10.0.10061.0	32742600
0.05%	%SYSDIR% \ DRIVERS \ usbser.sys	Microsoft® Windows® Operating System	Microsoft Corporation	6.0.6002.18927	22492889
0.05%	%SYSDIR% \ DRIVERS \ usbser.sys	Microsoft® Windows® Operating System	Microsoft Corporation	5.1.2600.2180	1330028
0.05%	%SYSDIR% \ DRIVERS \ usbser.sys	Microsoft® Windows® Operating System	Microsoft Corporation	5.2.3790.1830	24118883
0.05%	%SYSDIR% \ DRIVERS \ usbser.sys	Microsoft® Windows® Operating System	Microsoft Corporation	5.1.2600.5503	5815204
0.05%	%SYSDIR% \ DRIVERS \ usbser.sys	Microsoft® Windows® Operating System	Microsoft Corporation	6.1.7601.22436	30551511
0.05%	%SYSDIR% \ DRIVERS \ usbser.sys	Microsoft® Windows® Operating System	Microsoft Corporation	5.2.3790.5216	26339398
0.05%	%SYSDIR% \ DRIVERS \ usbser.sys	Microsoft® Windows® Operating System	Microsoft Corporation	6.2.9200.16384	14996587

You can also check global information about usbser.sys.