[bug]: Failed to create virtual environment: spawn EPERM

[YesThisIsMe007]

Is there an existing issue for this problem?

• I have searched the existing issues

Operating system

Windows

GPU vendor

Nvidia (CUDA)

GPU model

NVIDIA RTX 3070 LHR

GPU VRAM

No response

Version number

v5.9.0

Browser

Edge Chromium134.0.3124.93 64-bit

Python dependencies

Python 3.11.9. 64-bit

What happened

Starting up...
Installation parameters:

• Install location: C:\InvokeAI
• GPU type: nvidia>=30xx
• Torch Platform: cuda
  Creating virtual environment...

C:\Users\tomaz\AppData\Local\Temp\2tHK8V6PQNi8BAls37RH9oI97Ms\resources\bin\uv.exe venv --relocatable --prompt invoke --python 3.11 --python-preference only-managed C:\InvokeAI.venv
Failed to create virtual environment: spawn EPERM
Try installing again with Repair mode enabled to fix this.
Ask for help on Discord or GitHub if you continue to have issues.

What you expected to happen

I expected to install InvokeAI.

How to reproduce the problem

Just try to install InvokeAI with .exe installer.

Additional context

No response

Discord username

No response

[YesThisIsMe007]

My problem is somehow similar to #7808.
Running in repair mode did not help.

[ebr]

You're installing in the root of the C: drive. Try to select a location inside your user dir or another drive where your user has write permissions.

[YesThisIsMe007]

I tried to install inside C:/InvokeAI/. Until now always successful.

Starting up...
Installation parameters:

• Install location: C:\Users\tomaz\AppData\Local\InvokeAI
• GPU type: nvidia>=30xx
• Torch Platform: cuda
  Repair mode enabled:
• Force-reinstalling python
• Deleting and recreating virtual environment
  Reinstalling Python...

C:\Users\tomaz\AppData\Local\Temp\2tHK8V6PQNi8BAls37RH9oI97Ms\resources\bin\uv.exe python install 3.11 --python-preference only-managed --reinstall
Failed to install Python: spawn EPERM
Try installing again with Repair mode enabled to fix this.
Ask for help on Discord or GitHub if you continue to have issues.`

Tried in repair mode.

[YesThisIsMe007]

I went now through https://invoke-ai.github.io/InvokeAI/installation/manual/#walkthrough and "For Windows:
Open PowerShell with administrative privileges.

Run this command to download and execute the installation script:

powershell
irm https://astral.sh/uv/install.ps1 | iex
After Installation:
Restart your terminal to ensure uv is accessible.

Verify the installation by running:

bash
uv --version
Let me know if you need help with any specific step!

" (thank you, Microsoft Copilot) successfully.

After setting and activating environment I was able to continue with the .exe installer.

[YesThisIsMe007]

Again - with v5.9.1.