edit: no that looks like a permissions issue. i'm not familiar with windows but you may need to install electrum as an administrator. alternatively there's the standalone exe download that just works:
https://electrum.org/#download
Topic: Aware of this issue in Electrum while downloading 3.3.8? - page 2. (Read 433 times)
Does it show the full file path for that .DLL? 
Also, did you check the digital signature of the install file? https://bitcoinelectrum.com/how-to-verify-your-electrum-download/
Also, did you check the digital signature of the install file? https://bitcoinelectrum.com/how-to-verify-your-electrum-download/
It might be a compatibility issue, you can try to ignore it but I doubt that would work. Try the suggested solutions in these articles[1][2].
[1] https://answers.microsoft.com/en-us/windows/forum/all/what-causes-repeated-error-opening-file-for/6b83a847-8806-4cd8-b1a6-18ff71045513
[2] https://windowsreport.com/error-opening-file-for-writing/
[1] https://answers.microsoft.com/en-us/windows/forum/all/what-causes-repeated-error-opening-file-for/6b83a847-8806-4cd8-b1a6-18ff71045513
[2] https://windowsreport.com/error-opening-file-for-writing/
I tried to update my Electrum from v3.3.4 to v3.3.8 as I was suggested by Electrum to do so, from their website. I downloaded it and while trying to install it, I saw this:
When I retry, it shows me this error continuously.
Will it be good for my wallet if I ignore this file and try to download the wallet anyway? Is there a solution for this?
Code:
Error opening file for writing:
C:\...\MSVCP140.dll
Click Abort to stop the installation,
Retry to try again, or
Ignore to skip this file.
C:\...\MSVCP140.dll
Click Abort to stop the installation,
Retry to try again, or
Ignore to skip this file.
When I retry, it shows me this error continuously.
Will it be good for my wallet if I ignore this file and try to download the wallet anyway? Is there a solution for this?
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