Windows is blocking CIS instalation in free and pro version sending screens shot
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The problem you are experiencing is the problem of revoking COMODOâs digital certificate.
This topic below talks about this. Please read it and it will help you. 
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As I told earlier CIS 2025 installed on Win11 was working perfectly until recently. Iâve checked the certificates of CIS 2025 main files; all are recognized valid by Windows.
Then Iâve restore an image of my system prior to Win 11 September 2024 update and CIS 2025 is again working flawlessly.
So I think we have in fact 2 different problems to solve:
- CIS 2025 existing installations have been tampered with by windows update or became incompatible after the update
- CIS 2025 installer has its certificate revoked
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Iâm going with the second option: âThe CIS 2025 installer has its certificate revokedâ
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I work with all the options.
I had to uninstall Comodo CIS and Iâm waiting for the patch to reinstall.
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Unfortunately, I think itâs a waste of timeâŚ
It feels like a gameâŚ
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Sorry Loyisa, I didnât have any Egyptian hieroglyphs to hand.
Thank you Prodex for the translation.
Youâre a real gentleman!
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tried in safemode, reboot, doesnât work, same as before
Comodos chat support is telling me that this is a rare issue and its Microsofts fault, this sounds like complete cr@p to me.
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It doesnât matter whose fault it is, needs a result.
CIS Cleanup Tool 3.3.0.95 has been released, signed with a valid certificate instead of 3.2.0.84 with revoked one. What prevents to do the same with the Comodo Internet Security 2025?
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If anything, this should show the inherent unreliability of cloud based cert authorities, and current Windows OS over-reliance on such technologies. While something like the Crowdstrike incident is a bit different, there are some take-away lessons from it that can be applied broadly, but it seems those lessons havent been learned by many.
My company is currently evaluating endpoint security solutions, Comodo is one of the products on the list, this will ding its overall score pretty badly. Regardless of whos âfaultâ it is, the ability to correct such a situation in a timely manner is a critical metric.
Right now I am messing around with the CRL in Win10 to see if I can get around the installer failure. Temporarily have the particular PC disconnected from the network so it doesnt lookup/update, etc. IF I can get it to work, I will post the process as a work-around.
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CIS 2025 Installer isnât the only Comodo product with a revoked certificate. Dragon setup.exe has also its certificate revoked.
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I really agree with what you said, This situation of the revoked certificate is going beyond the limits. The time they said was 2 weeks, but it has been much longer. 
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Things are looking bad. So far, is there anyone who can tell us whatâs going on with COMODO?
If you need help, call me, Iâm here to help!
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Hi New_Style_xd,
"Thank you for reporting.
Let me check and update you . " (Usual response from Comodo teams)
Comodoâs problem is communication, not the product.
If theyâd announced a one-month lead time from the outset, we wouldnât be in this messâŚ
itâs better to announce a month and finish in three weeks than to announce two weeks and finish in fourâŚ
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I donât think âcloud based cert authoritiesâ are to blame here. Windows requires drivers be signed with those expensive EV certificates these days. Iâm more inclined to think that Comodo messed up and either their keys were hacked and used to sign malware, or they breached some clause of the TOS that resulted in this mess. You donât just âaccidentallyâ have a 500$+ certificate revoked like that, and it certainly does not take over 30 days to issue a new one, itâs something that at best takes 1-2 business days.
and as pointed out by @Xeno, there is a new CISCleanupTool( v3.3.0.95 ) that is signed with an EV R36 cert issued on 2024-09-15 just TWO days after this thread was created, which proves that they already had a new EV cert issued to them and all this waiting is unnecessary.
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i i said multiple time. The fix will come at the end of the year
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Hello!
I buy/renew this year the subscription for CIS2024.
But now I want install the new 2025.
I have new computer. Never install the CIS (is in my old PC).
But, I ca not install. I read some problems here, but I hink my is new but⌠perhaps connected to forum.
When try install I have this problem in middle:
âcmdhtml.dll wasn´t properly signed. Installation abortedâ
Is the same problem debated here? Or I can try other process?
I try run as administrator, mas Win11 not permit. I try, google⌠to solve the problem run as administrator but win not permit.
How I pay, some of you have some comodo email to send this also?
Thnak you
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yes same problems, different weeks, no solution from comodo. You need to wait and pray.
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Didnt say they were to blame, it just shows an inherent flaw in the overall system, and Windows over-relying on such tech. The revoked cert impacted a lot of systems, systems that were otherwise secured, but either stopped functioning properly, and/or couldnt be reinstalled (and still cant). In this case, many now dont have their normal means of system security. This revoked cert, regardless of why/how it was revoked, ended up compromising security rather than protecting anything. In the absence of any other legitimate evidence/communication, the observable effect is the only valid conclusion.
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