Visual Studio 2017 installation error "The installer manifest failed signature validation".

Question

_{Wednesday, August 30, 2017 10:04 AM}

I am new to the Visual Studio 2017 and We downloaded vs2017 Enterprise installer from microsoft site While installing we are getting following error.

Microsoft.VisualStudio.Setup.Security.ManifestSignatureVerificationFailedException: The installer manifest failed signature validation.

Please help me How can I install it.

All replies (7)

_{Tuesday, September 5, 2017 8:15 AM ✅Answered | 1 vote}

It's disabled already.

Finally it's resolved by manually importing following certificates into the Trusted root certificates authorities(mmc).

1. manifestCounterSignCertificates.p12
2. manifestSignCertificates.p12
3. vs_installer_opc.SignCertificates.p12

 goto run -> mmc -> File -> add/remove snap in.. -> select Certificates -> click add -> computer account -> Local Computer -> ok. Next expand Certificates -> right click on Trusted root certification authorities ->all tasks -> Import -> next -> browse certificate location from your hard disk for above mentioned certificates.

_{Thursday, August 31, 2017 6:43 AM}

Hi Rama,

Thank you for posting in MSDN forum.

Please check this link , have a try with Gary's solution to disable FIPS compliance:

1. Run gpedit.msc

2. Go to Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> System cryptography.

3. For FIPS compliant algorithms for encryption, hashing, and signing, please disable it.

4. Re-run VS installer as administrator.

Best Regards,

MSDN Community Support
Please remember to click "Mark as Answer" the responses that resolved your issue, and to click "Unmark as Answer" if not. This can be beneficial to other community members reading this thread. If you have any compliments or complaints to MSDN Support, feel free to contact [email protected].

_{Tuesday, September 5, 2017 12:09 PM | 1 vote}

Hi Rama,

Thank you for your update and glad to hear you solved this issue successfully.

It's really kind of you for sharing the solution here, I will also take your reply as a note, which will also benefit other community members who encounter similar issue.

Have a good day:)

Best Regards,

MSDN Community Support
Please remember to click "Mark as Answer" the responses that resolved your issue, and to click "Unmark as Answer" if not. This can be beneficial to other community members reading this thread. If you have any compliments or complaints to MSDN Support, feel free to contact [email protected].

_{Friday, December 15, 2017 7:54 PM}

I am also trying to install on machines not connected to the internet. On two machines the layout and install worked but on two others I get

Microsoft.VisualStudio.Setup.Security.ManifestSignatureVerificationFailedException: The installer manifest failed signature validation

I have tried all of the suggestions above to no avail (I installed certs, I made sure cryptography setting were disabled (actually group policy has this fised to disabled)). I redownloaded vs_Professional.exe and reinstalled certs...etc, etc. etc... Still the same problem.

Is there any way to just stop it from checking this and install?

Is there any place to just download the C++ part into an ISO? Anything??

I need to get past this error by hook or crook. Please help!!!

Bob

_{Tuesday, September 25, 2018 11:37 AM}

whether i should create the certificate else should download the certificate? if want download where can i get it! 

pls help me Rama

_{Monday, October 1, 2018 10:52 AM}

This just doesn't work with me.

_{Wednesday, January 23, 2019 3:21 PM}

where is the location of these certificates ? 
I searched  for it but i did not find it