Consider using gpedit.msc to disable automatic Windows reboots so your host doesn't go offline unexpectedly for updates.
A quad-core CPU and at least 8GB of RAM (16GB recommended for heavy loads). Storage: How To Setup a SIA Host – Windows Tutorial
Warning: Never forward port 9980, as it exposes your host management to the public internet. Consider using gpedit
A 64-bit version of Windows that is fully up to date. How To Setup a SIA Host – Windows Tutorial