# Cannot install mitmproxy certificate on windows 10

**URL:** <https://discourse.mitmproxy.org/t/cannot-install-mitmproxy-certificate-on-windows-10/784>\
**Category:** help\
**Created:** [January 2, 2018, 10:01pm UTC](https://discourse.mitmproxy.org/t/cannot-install-mitmproxy-certificate-on-windows-10/784 "2018-01-02T22:01:08Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![rbjobs](https://avatars.discourse-cdn.com/v4/letter/r/cab0a1/32.png) [@rbjobs](https://discourse.mitmproxy.org/u/rbjobs)\
**Post date:** [January 2, 2018, 10:01pm UTC](https://discourse.mitmproxy.org/t/cannot-install-mitmproxy-certificate-on-windows-10/784/1 "2018-01-02T22:01:08Z")

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In windows cmd, I switched to the folder where the certificate is present and ran this command: certutil.exe -importpfx Root mitmproxy-ca-cert.p12

The output was:  
Enter PFX password:  
CertUtil: -importPFX command FAILED: 0x80070056 (WIN32: 86 ERROR\_INVALID\_PASSWORD)  
CertUtil: The specified network password is not correct.

I had entered a random string of 1234 as my password and got the above error message. What I am doing wrong and how do I fix this problem ?

Thanks !

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**Author:** ![rbjobs](https://avatars.discourse-cdn.com/v4/letter/r/cab0a1/32.png) [@rbjobs](https://discourse.mitmproxy.org/u/rbjobs)\
**Post date:** [January 2, 2018, 11:22pm UTC](https://discourse.mitmproxy.org/t/cannot-install-mitmproxy-certificate-on-windows-10/784/2 "2018-01-02T23:22:48Z")

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I fixed this by using a blank password. But, I don’t know if this could cause problems later.

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**Author:** ![socksy](https://avatars.discourse-cdn.com/v4/letter/s/74df32/32.png) [@socksy](https://discourse.mitmproxy.org/u/socksy)\
**Post date:** [September 14, 2019, 5:33pm UTC](https://discourse.mitmproxy.org/t/cannot-install-mitmproxy-certificate-on-windows-10/784/3 "2019-09-14T17:33:18Z")

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I am experiencing the same issue, but using a blank password does not fix the problem. Instead certutil complains that this is a self-signed certificate. Any idea how to overcome this?