putty unable to use key file new format

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
putty unable to use key file new format	0.29	0.8	2007	80	39
putty	1.23	0.9	8575	92	5
unable	1.78	0.3	9896	82	6
to	0.99	0.1	6383	89	2
use	0.92	0.7	9333	25	3
key	0.24	0.7	9089	98	3
file	1.14	0.5	513	10	4
new	0.78	0.3	1722	51	3
format	1.85	0.1	6130	18	6

Keyword	CPC	PCC	Volume	Score
putty unable to use key file new format	0.29	0.8	867	65
unable to use key file putty	0.56	0.2	4204	75
putty not a recognised key file format	1.02	0.8	7909	77
putty key format too new error	1.58	0.4	1708	78
putty key format too new	1.32	0.8	3867	86
putty use key file	1.31	1	6558	54
unable to use key file new format	1.52	0.2	9053	10
putty unable to use certificate file	1.28	0.1	268	36
putty unable to open file	1.43	0.9	9962	90
putty key format too new mobaxterm	0.3	0.6	8669	17
puttygen not a recognised key file format	1.42	1	3216	72
putty user key file 3	0.23	0.6	7590	61
putty user key file	1.27	0.5	3373	75
putty key is too new	0.49	0.7	3749	59
putty format too new	1.22	0.8	7180	55
putty private key format	0.72	0.9	2841	27
putty private key file	1.19	0.8	9901	25
putty fatal error couldn't agree a key	0.93	0.2	8116	56
putty couldn't agree a key	1.34	0.2	6187	55
putty-user-key-file-2	1.89	0.8	5033	28