CIS 7.0.317799.4142 download seems to be corrupted

The link given here - to download 7.0.317799.4142 seems to be corrupted. The information says it is 208 MB but the download window shows 10.1 MB.

But this is not the the total surprise. The 10.12 MB changes to 208 MB after several tries. And then the completed download fails to comply with the sha1 value given on that page.

Screenshot attached.

[attachment deleted by admin]

There was some discussion earlier about the SHA1 not matching. It seems that the file has changed slightly and no one updated the SHA1 on the forum page.;msg778744#msg778744;msg778814#msg778814

Thanks L.A.R. Grizzly for the reply. I have checked the suggested links. But there are several points besides “slightly tweaking of the file”.

  1. Why it sometime shows 10.12 MB and some other time 208 MB?

  2. In reply to your offer to upload the CIS version of April 11, 2014 withe size size 219.8 MB, Netguy101 said (;msg778876#msg778876 ) that it was available here - Best Internet Security Software 2022 | Antivirus Total Security . But there too the size says 12.5 MB ! Can CIS installer be in that size?

  3. Several tries of downloading the installer without checking sha1 or md5 succeeded. But failed to innitiate installetion saying 7z archive error.

1 - I don’t know why there is a difference in file sizes you mention. Seems like you’re getting a corrupted download.

2 - The installer can’t be that small, it’s over 200MB

3- I uploaded the original installer of April 11, 2014 if you want it. Below are the SHA1 and MD5 of that installer as well. I have it in .zip format to avoid corruption.

Here is the link to the uploaded file:

cispremium_installer.exe - 230,532,272 bytes
SHA1 - 65A5AB83DE003B4612DEEC510B6E7A2B2A68F197
MD5 - 2D9C79B2AC2F0FE0CEEB264215495241

It will be available for about 5 weeks.

I downloaded CIS installer to see what I would get. I got the proper version.

Can you try downloading again and see what happens?

Thank you both of you.

This Time I tried to download from two locations. Results are shown in screenshots 01 and 02.

  1. Location was the link mentioned in the forum of release announcement which offers CIS 7.*. Described size is 208 MB but download window showed 10.1 MB. Please check attachment.

  2. Location was the link provided in comodo free software section which offers CIS 6100_08. Download window showed unbelievable size of 2.4 MB. Please check attachment.

Can this be some sort of CDN issue? May be you are getting the installer delivered from CDN_01 but I am getting them from CDN_02 where the files are corrupted.

[attachment deleted by admin]

It is likely a problem with the CDN or load balancing. I sent a pm to Sergey Kazakov (Program Manager Comodo Internet Security) about it.

OK. Thank you for your time.


  1. Still download window shows “cispremium_installer.exe” 10.1 MB -

  2. Still download window shows “cispremium_installer_6100_08.exe” 02.4 MB - Best Internet Security Software 2022 | Antivirus Total Security

  3. Still download window shows “cispremium_installer.exe” 12.5 MB - Download Comodo Internet Security

Thank you for reminding . I contacted a Comodo network admin. But since it is weekend we will have to wait some more. :-\

I got word from the network admin. According to him the situation looked normal and suggested the problem would be on your end.

Could you try the following:

  • Clean browser cache and restart your browser
  • When that does not help try using another browser. When needed clear that browser’s cache and restarting
  • Clearing DNS cache and restarting your browser(s)
  • Resetting the TCP/IP stack