Problem with ssl renew


Please fill out the fields below so we can help you better. Note: you must provide your domain name to get help. Domain names for issued certificates are all made public in Certificate Transparency logs (e.g., so withholding your domain name here does not increase secrecy, but only makes it harder for us to provide help.

My domain is:

I ran this command:
D:\letsencrypt>letsencrypt.exe --accepttos --manualhost --webroot D:\YO

It produced this output:
Authorizing Identifier Using Challenge Type http-01
Writing challenge answer to D:\letsencrypt.well-known/acme-challenge/TITM_QV1q
Answer should now be browsable at
Submitting answer
Authorization Result: valid

Requesting Certificate
Request Status: Created
Saving Certificate to C:\Users\Administrator\AppData\Roaming\letsencrypt-win-si
System.IO.IOException: ???

at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
at System.IO.__Error.WinIOError()
at System.IO.Path.InternalGetTempFileName(Boolean checkHost)
at LetsEncrypt.ACME.Simple.Program.GetIssuerCertificate(CertificateRequest ce
rtificate, CertificateProvider cp)
at LetsEncrypt.ACME.Simple.Program.GetCertificate(Target binding)
at LetsEncrypt.ACME.Simple.Program.Auto(Target binding)
at LetsEncrypt.ACME.Simple.Plugin.Auto(Target target)
at LetsEncrypt.ACME.Simple.ManualPlugin.HandleMenuResponse(String response, L
ist`1 targets)
at LetsEncrypt.ACME.Simple.Program.Main(String args)
Press enter to continue.

My web server is (include version):
The operating system my web server runs on is (include version):

My hosting provider, if applicable, is:
I can login to a root shell on my machine (yes or no, or I don’t know):
I’m using a control panel to manage my site (no, or provide the name and version of the control panel):

My old certificate expired on 10 Dec 18, when I ran the update command today, I got the above error message. Please help me,many thank for you.


Doesn’t seem to match your webroot:

Please review the use of webroot within letsencrypt for windows.

Also, (unrelated) be informed:
IIS7 doesn’t support SNI
That may present a problem down the road if you try to host multiple sites on the same IP.


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