Zero Hour freezes midgame

Hello everybody,

as the title says since I have a new PC, the game freezes midgame for about 5 seconds. Then the screen turns white, tabs out the game for a few milisecond, plays a few frames again just to rinse and repeat it. Sometimes I can play just normal after it does this weird behavior for 4-5 times but sometimes it stucks with a white screen but game is running normally.

It also seems like my windows configuration for night mode gets deactivated.

Problem is I couldn't really find a trigger or other way to replicate it.

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What I've done so far.

- Install GenTool

- Install GenPatcher (Can't get all Fixes because of DriveFix error where i also couldn't find a solution)

- Also installed GenLauncher for mods ((Contra, TEOD, Condition Zero and Cold War Crisis) but also happens in vanilla)

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I hope you can help me