Electrum bitcoin wallet 3.1.1 portable doesn´t open

[cryptoolli]

Hi, i use the Electum Bitcoin Wallet portable on an USB Stick with Windows 10.
I tried to use the actuel portable version 3.1.1 on my USB Stick but the Wallet didn´t open.
Version 3.0.6. opens without any problems.

Do you know where is the problem with version 3.1.1 ?

[TryNinja]

I don't think so. Have you tried to open the standalone version or install it normally to check?

P.s: It's not recommended to use the portable version of Electrum. Source;

[NeuroticFish]

I don't think so. Have you tried to open the standalone version or install it normally to check?

P.s: It's not recommended to use the portable version of Electrum. Source;

Actually what ThomasV is saying is that users may tend to get portable Electrum onto infected computers and that will be a problem.

Don't get me wrong: I am not saying that a portable build is by itself more dangerous than a non-portable version.

Now about the original question:
I made a test for you and I reproduced the problem. And I have a fix too. From electrum_data move away all the folders except wallets. Electrum portable 3.1.1 will start. You will have to select your wallet again.

[BitMaxz]

I tried the Electrum 3.1.1 just now and it's working fine while running it from USB flash drive, my OS is Windows 7.
The only thing that I noticed is it is detected as virus from Kaspersky.
Maybe your antivirus is blocking electrum 3.1.1 when running it to a USB drive since Windows 10 has built-in antivirus(Windows Defender)
Could you try to disable your Windows Defender first and try again?
Make sure that you are offline before you do this for safety purposes.