Suggestions:
Open Steam settings, go to the "Downloads" section, and click on "Clear Download Cache".
Run Steam as administrator.
Sometimes uninstalling and reinstalling Stream files may help.
Restart the computer in Safe Mode with Networking and try running Steam to see if it works.
Sometimes, corrupted Visual C++ Redistributables can cause issues. Download and reinstall the latest versions from the Microsoft website.
Consider checking the Steam forums or contacting Steam Support for further assistance. They might have more specific solutions for your issue.