Multi Commander > Beta Releases

After the update, I can't even launch MultiCommander 12.0.0.2877 under Windows 7

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Timon:
I'm running Windows 7 SP1.

Already had in my system:
- Microsoft Visual C++ Redist 2008 9.0.30729.6161
- Microsoft Visual C++ Redist 2010 10.0.40219
- Microsoft Visual C++ Redist 2015-2022 14.31.31103

Updated to Microsoft Visual C++ Redist 2015-2022 14.32.31326. Rebooted the computer. But nothing helped. Crash-ID: 12-L120AF

Mathias (Author):

--- Quote from: Timon on June 20, 2022, 22:15:51 ---I'm running Windows 7 SP1.

Already had in my system:
- Microsoft Visual C++ 2008 9.0.30729.6161
- Microsoft Visual C++ 2010 10.0.30319
- Microsoft Visual C++ 2015-2022 14.31.31103

Updated to Microsoft Visual C++ 2015-2022 14.32.31326. Rebooted the computer. But nothing helped. Crash-ID: 12-L120AF

--- End quote ---

Are you really sure it is SP1 ?
Because the crash is in the new unzip code. The new unzip code uses AVX2 CPU instruction for faster performance (If the CPU supports it).
But AVX2 CPU instruction also require OS support and that was not added until Windows 7 SP1. So that would explain the crash.
Not sure if the AVX2 support is something that can be turned off someplace in the OS.

I have it running on a clean Windows 7 Sp1 on a virtual machine.. I don't have one without Win7. can't install that anymore

Edit
you have not by any chance modified the boot kernal parameters and have run

"bcdedit /set xsavedisable 1"  ?

That would disable the OS support for AVX2.  so doing "bcdedit /set xsavedisable 0" should enable it again..



Timon:
Yes, I'm sure (see screenshot) https://ibb.co/ftxHxqB

Edit
Tried to run
bcdedit /set xsavedisable 0
But the system reported:
"The boot configuration data cannot be opened.
Access denied."
Despite the fact that I am an Administrator

Edit2
Run cmd as Administator
bcdedit /set xsavedisable 0
Operation completed successfully
But again that not helped. Crash-ID: 12-C120RV

Mathias (Author):
Strange, because the crash is that the AVX2 cpu instructions is not allowed. 

Timon:
Updated to version 12.0.0.2885 - again crash.

From http://multicommander.com/downloads downloaded MultiCommander v11.6.0 (Build 2845) (32 bit) SHA1 : 1046D81971C39856698629AABB9505040A5A0745 and made "Upgrade", which is actually "Downgrade". And it works fine at the sam—É notebook without any additional actions on my part! Now I'm afraid to upgrade to a fresh beta. In the new versions, something is clearly broken on your side, otherwise the old version would not work either. How else can I help to solve this problem?

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