2 weeks ago was Microsoft's Patch Tuesday. However, Windows 7 has been unsupported by Microsoft since January 14th so you should not have had any Windows updates installed then. You could confirm that by checking your update history in Windows Update.

The Java support page recommends running a Microsoft utility if you're having problems installing apps: https://support.microsoft.com/en-us/help/17588/windows-fix-problems-that-block-programs-being-installed-or-removed

Since Windows 7 is no longer supported you should not be using it for production or other important work. Companies can silently and without notice stop supporting their apps on it. If they give users a 6 month grace period to switch to Win10, well, that expired 2 weeks ago.

As a workaround maybe you could remote in to your Win10 computer from the Win7 one when you need SecureLinkCM functionality.

>OS. One Windows 7 and another Windows 10. But Windows 7 worked just about 2 weeks ago.
>But I will compare other things as well.
>The SecureLink support said that the problem is probably with the version of Java installed on my PC.
>But I installed at least 3 different versions (uninstalling the previous ones) that worked on other people's PCs.
>But mine didn't work.
>I am convinced that Java is not the problem. Something else.
>
>>What are the differences between the one that worked, and the one that doesn't?
>>
>>>I did try it on my Windows 10 (another computer that I just bought). And it worked.
>>>But my "working" computer is this one. And I would prefer to make it work on this PC. And this software, SecureLink, worked here just about 2 weeks ago, for a long time.
>>>
>>>>Do you have another computer or VM on which you can try to install the software?
>>>>
>>>>>I think I tried all items you listed below. But to no avail. If I don't find the solution myself, I am screwed.
>>>>>Clearly my problem is unique; otherwise, the support company (SecureLink) would find the solution. But since I am just one in a "million", they don't give a shit.
>>>>>
>>>>>Thanks.
>>>>>
>>>>>>I'd try to get support from the company that makes that software:
>>>>>>
>>>>>>- Do they have a support phone number?
>>>>>>- Do they have a support forum with a community?
>>>>>>- Do they offer downloadable tools such as "complete" uninstallers or "cleanup" tools? Sometimes a failed or incomplete installation can cause subsequent installation attempts to fail. Running a cleanup tool can get you back to square one
>>>>>>
>>>>>>>Hi,
>>>>>>>
>>>>>>>This is another message regarding my problem installing Secure Link Connection Manager (SecureLinkCM.EXE)
>>>>>>>
>>>>>>>Where and how do I view what stops the installation? I am looking at the Event Viewer but I can't find where (if anywhere) the events of failed installation would be shown?
>>>>>>>
>>>>>>>If not in the Event Viewer, how else can I figure out what stops the installation
>>>>>>>
>>>>>>>Btw, I tried installation after setting Firewall OFF and bringing down the AV.
>>>>>>>
>>>>>>>TIA