I am a fresher to Solana. So I tried to install solana environment to my pc. My pc is using Windows 10 OS. But I have an issue whild building solana environment. After setup solana CLI, and I tried to generate keypair with these commad "solana-keygen new --force" "solana-keygen new" "solana-keygen new --outfile ~/my-solana-wallet/my-keypair.json"
But there is only one sentence in Command Prompt : "Generating a new keypair" for 4 hours.
How can I fix it?