Mypaint will not start stand alone and installer versions Windows 10

[WaruiWalrus]

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Description of the problem

[✍ Mypaint will not start stand alone and installer versions]
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Basic system details

MyPaint version: [✍ 1.2.1, 2.0.1, …]
Operating system: [✍ Windows 10, …]
Desktop environment: [✍ Windows, …]

Steps to reproduce

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1. Start MyPaint
2. [✍fail]
3. [✍ retry]

Backtraces or error messages

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