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1  Bitcoin / Electrum / Re: Electrum Windows client does not start after update on: April 01, 2024, 09:23:52 AM
Uninstalling and reinstalling worked. Sometimes it is that easy. Thank you very much for your very helpful and quick support.  
2  Bitcoin / Electrum / Re: Electrum Windows client does not start after update on: March 29, 2024, 05:52:38 PM
First: Thank you very much for your quick reply.

I followed your recommendations and did...

- checked the signature of the download --> the download was ok
- installed two pending Windows updates and restarted my computer --> no improvement
- checked the task manager --> the program does not show up there at all
- read the linked thread about the .dll problem and ran the electrum-4.5.4-debug.exe --> this is the output of the debugging

Quote
C:\Program Files (x86)\Electrum>electrum-4.5.4-debug.exe
PyInstaller\loader\pyimod02_importers.py:352: UserWarning: You are using cryptography on a 32-bit Python on a 64-bit Windows Operating System. Cryptography will be significantly faster if you switch to using a 64-bit Python.
  0.64 | E | daemon.Daemon | GUI raised exception: SystemExit("Error: Could not import PyQt5. On Linux systems, you may try 'sudo apt-get install python3-pyqt5'"). shutting down.
  0.64 | E | __main__ | daemon.run_gui errored
Traceback (most recent call last):
  File "electrum\gui\qt\__init__.py", line 34, in <module>
ImportError: DLL load failed while importing QtGui: Die angegebene Prozedur wurde nicht gefunden.

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "electrum\daemon.py", line 620, in run_gui
  File "PyInstaller\loader\pyimod02_importers.py", line 352, in exec_module
  File "electrum\gui\qt\__init__.py", line 37, in <module>
electrum.GuiImportError: Error: Could not import PyQt5. On Linux systems, you may try 'sudo apt-get install python3-pyqt5'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "run_electrum", line 458, in handle_cmd
  File "electrum\daemon.py", line 622, in run_gui
SystemExit: Error: Could not import PyQt5. On Linux systems, you may try 'sudo apt-get install python3-pyqt5'

1. Does this output says you anything?
2. If I want to reinstall the client, I have to backup the wallet file first, right?
Otherwise my bitcoins could get lost because the wallet saves everything locally on my machine. The wallet file is saved under C:\Users\<user name>\AppData\Roaming\Electrum\wallets --> Correct?
3  Bitcoin / Electrum / Electrum Windows client does not start after update on: March 29, 2024, 01:27:36 PM
Hi,

after having not used Electrum for almost five years, I successfully started the client today. After the synchronization I saw that for my version 3.3.4 an update was available. I downloaded the latest Windows Installer version from https://electrum.org/#download and started the installation. The "old" client was still running while the installation. In the middle of the update an error message was shown (something related to an .dll) and I closed the old client and clicked the "Wiederholen" button. Then the update ran until it showed "Completed".

But now the updated client does not start anymore. Neither clicking on the icon on my desktop nor clicking on the electrum-4.5.4.exe file or on the electrum-3.3.4.exe file in the system folder works.

My computer runs with Windows 10 Home, version 10.019045.

Can you help?

Thank you
Robert
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