Winbox & 6.36.3 ERROR could not create file

Hi Every one
I tried the 6.36.3 in a CCR-1036 and also in one x86 machine

in both cases I have the error ERROR could not create file I tried using winbox3.4 and also Winbox 3.5 and I have the seme problem
I tried using different computers , no antivirus enable.

noe I need to do netinstall in order to recover the router.

any can help whit comment about how to fix this problem

Regards,
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