1. Disable/Unplug your internet connection.
2. Click for trial version or enter one of this invalid codes-
GT5VQ-JX3MF-5SEFR-PX56F
5DS6N-FTMZV-HXUDK-H1XAR
51MNK-G3KW3-KHCZZ-8CN2M
HMSJA-5MX27-FM3VB-3252E
BBH1J-BMH1Z-JUWAD-52Y1V
H75P6-843Q4-N99RQ-7TRKG
K7BXW-1BHGB-AVKHG-F162Q
J398A-DR1YN-AG7KC-F2Q5J
GT5VQ-JX3MF-5SEFR-PX56F
KJEGM-C7274-1G5SN-TSAP3
HXGN1-YBCXH-J3KW9-K589V
KK9WC-GGMC7-XCYVF-1R8XU
H7FUH-KM6TN-S5UTX-93QBS
JTCSR-3X2RX-KVRBC-N462M
H979W-ANDMZ-N4W1K-Z3RS4
7C72Z-GYXM2-G2D95-RY8CV
HCW7U-C34VH-ETTWU-YPUGD
FNQT5-1YD9E-MJYY8-WXEX8
KK98K-HHXWG-C3JG6-6ZZYR
HYRPZ-38W2X-MB5DH-KF421
J5CPD-63M7R-KBR9E-H6YHB
B4862-EGQ3Q-J3GNU-EDECD
J5Z1H-NHR8J-9HZFA-DJ5FT
3TZV1-Z5F9W-DXBWX-Q1KDA
3. Kaspersky will show you an error.
4. A new window will appear with key file browsing option.
5. Select your key from browsing window.