Need technical help for missing dlls

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As it says at the title I have this api-ms-win-crt-runtime-|1-1-0.dll error when I try to use Retera Model Studio. I tried to search first in the internet for solutions and I tried repairing the Microsoft Visual C++ 2015 Redistributable (x64) and installing a new one but I discovered I don't have a Windows 7 SP1 OS, I still have the Windows 7 Professional version and SP1 isn't available in the Microsoft website anymore. I don't know what to do. Also there are dll websites I saw but I'm not sure what sites are safe to download from.
 
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Microsoft website is the first thing that I searched for possible solutions. I forgot to mention I keep getting errors when installing the VC++ which I don't know why because the log file isn't showing or telling what error it is. One possible issue is because I don't have Windows SP1 and it isn't available in the microsoft website anymore.
 

pyf

pyf

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The SP1 is still available from the catalog:

If you have never updated your copy of Windows 7 (for example, by disabling Windows Update), then you are missing:
  • the SP1 (+ the pre-required hotfix for it to install properly)
  • the servicing stack update
  • the sha-2 update
  • the convenience rollup
  • the cumulative update (note: the Feb 2018 one may not include the telemetry stuff that was added later)

Because the latest downloads for the VC++ 2015-2019 Runtime are SHA256-only signed, you may encounter errors because of that. For the record, Microsoft is in the process of deprecating SHA-1 in/from their products


Now, do you want to update your copy of Windows 7, or do you want to simply try to install a previous version of the VC++ 2015-2019 Runtime that is dual-signed? I can assist you in both cases.

So, what would you like to do?
 
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ohh I never knew that it still available in the catalog because the links from previous queries in microsoft support showed that it was unavailable. Weird right

Actually I've been looking for a way to update my Windows 7 because it keeps crashing as it periodically shows the blue screen error and it really disrupts whatever I'm doing. So it would be great if I can update my Windows 7. And it might also help me with my issues for VC++2015
 

pyf

pyf

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I can not guarantee this will solve any of the crashes / BSODs. Also, be aware that updating your copy of Windows 7 may or may not require you to re-activate it afterwards, depending on where this copy might eventually come from cough!. I suppose it was you who decided to disable Windows Update?

Anyway, for a manual download and update, the KBs are
  • Windows 7 SP1: KB976932 (+ prerequisite: KB2533552)
  • Servicing Stack update: KB4489885 plus KB4490628
  • SHA-2 update: KB4474419
  • Convenience Rollup: KB3125574-v4 (to be up to date until April 2016)
... plus any remaining monthly Cumulative update, it's up to you. For the record, the February 2018 one (KB4074598) iirc did not include the telemetry stuff, nor did require a SSE2 capable CPU yet (damn you for that, Microsoft!)
 
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Well I bought this in a local computer store with the OS already installed way back 2016-2017 so I don't think I have any activation keys or whatever I need. I disabled the windows update because the notifications was annoying I did update some stuff tho.
Thanks for the steps I might not be able to immediately update it because internet connection issues but I'll get back if I see some problems.
 

pyf

pyf

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[...] I discovered I don't have a Windows 7 SP1 OS, I still have the Windows 7 Professional version [...]
Well I bought this in a local computer store with the OS already installed way back 2016-2017 so I don't think I have any activation keys or whatever I need. [...]
rotfl this seems so weird, because the SP1 was released in 2011.

[...] or do you want to simply try to install a previous version of the VC++ 2015-2019 Runtime that is dual-signed? [...]
For documentation purposes and for the sake of completeness for those interested, I was referring here to the VC++ 2015-2019 Runtime v14.28.29213.0 (dual-signed on August 13, 2020), which happens to be the final(?) version of the runtime that also works on Windows XP
 

pyf

pyf

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[...] Actually I've been looking for a way to update my Windows 7 because it keeps crashing as it periodically shows the blue screen error and it really disrupts whatever I'm doing. So it would be great if I can update my Windows 7. [...]
This goes without saying but in case you still have not updated yet, then maybe you will want to run a full Scandisk first, in case there might be any bad sectors / logical errors on your HDD.
 
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do you want to simply try to install a previous version of the VC++ 2015-2019 Runtime that is dual-signed? I can assist you in both cases.

Hello again would you mind if you could also provide info for this one too. Updating to SP1 is kind of difficult in a way that my internet speed is not helping. This option might be smaller in data usage so I guess I could go to this option too.
 
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