Thanks for filing the issue!

As the issue seems to be related to "Enterprise" hence adding respective component and cc'ing @jmukthavaram for further inputs.

Thank you for flagging to correct team

Hi Greg,
can you take a look at his bug please.
 

Hi. I'm unable to reproduce this using the x64 MSIs for the two versions indicated. Could you please provide the verbose msi log for the failing run? For example:

msiexec /i googlechromestandaloneenterprise64.msi /l*vx msi.log

Thanks.

As requested. So we get the issue on multiple machines. The previous version is already installed (68.0.3440.75)

Deleted: msi.log 130 KB

msi.log 130 KB View Download

Thank you for the log. The behavior you describe and the contents of the log are consistent with an attempt to downgrade from a newer version of Chrome to an older. While I am still unable to reproduce this, I believe I understand what Windows Installer is looking at when it decides whether the attempted install is to a newer version, the same version, or an older version. Would you please attach (or send me directly) the output of the following commands from a machine experiencing the problem:

REM Check for Chrome's upgrade code: 96FDFD1C54952F233AE5EE499CC9C74F
reg query HKLM\SOFTWARE\Classes\Installer\UpgradeCodes\96FDFD1C54952F233AE5EE499CC9C74F /s
reg query HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UpgradeCodes\96FDFD1C54952F233AE5EE499CC9C74F /s

REM Check for Chrome 68.0.3440.75's product code: 9EEA40537992B173AB0055CB4B671039
reg query HKLM\Software\Classes\Installer\Products\9EEA40537992B173AB0055CB4B671039 /s
reg query HKLM\Software\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\9EEA40537992B173AB0055CB4B671039 /s

REM Check for Chrome 68.0.3440.84's product code: 45C9CB4A9854C4A32871F90A20264F17
reg query HKLM\Software\Classes\Installer\Products\45C9CB4A9854C4A32871F90A20264F17 /s
reg query HKLM\Software\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\45C9CB4A9854C4A32871F90A20264F17 /s

Hello, I have attached outputs of the commands you asked for. 

When running the last 2 commands it gave error that system could not find the registry key 
(reg query HKLM\Software\Classes\Installer\Products\45C9CB4A9854C4A32871F90A20264F17 /s
reg query HKLM\Software\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\45C9CB4A9854C4A32871F90A20264F17 /s)

Deleted: 1.txt 149 bytes

1.txt 149 bytes View Download

Deleted: 2.txt 174 bytes

2.txt 174 bytes View Download

Deleted: 3.txt 1.3 KB

3.txt 1.3 KB View Download

Deleted: 4.txt 1.9 KB

4.txt 1.9 KB View Download

Thanks for those attachments. The "Version" value for Chrome 68.0.3440.75 in the keys listed in 3.txt and 4.txt should be 0x435c004b (67.92.75). In the listings you provided, it is 0x44000d70 (68.0.3440). It appears that either the 68.0.3440.75 Chrome MSI you started with was modified, or some state on the machines was modified after it was installed. If you switch the Version values back to 0x435c004b, you should be all set.

I'm closing this out as WontFix since this doesn't seem to be an issue with the stock Chrome enterprise installer.

so we do use an mst to roll out the software, in our mst we do update the product version number to match the listed number in the chrome site. We have not had this issue before?

The Version field for Chrome's MSI is computed based on Chrome's W.X.Y.Z version as described here: https://bugs.chromium.org/p/chromium/issues/detail?id=67348#c62. Note that the Version you're setting it to for 68.0.3440.75 (0x44......) is higher than the true version (0x43......), so it makes sense that Chrome's MSI thinks that it's being downgraded. Also note that you're losing the build number entirely (.75 vs .84).

Your path forward is to stop modifying the version number. Note that since  issue 67348  was fixed, Chrome updates the DisplayVersion in the registry shortly after install/update, so Chrome's true 4-part version number is present in the registry and visible in the Programs and Features control panel. I hope this helps.