The search term bit ly windowstxt 10 kms typically refers to a popular script (often hosted on the domain msguides.com) used to activate Windows 10 and Office products via Key Management Service (KMS) client setup keys.
If you cannot verify the destination, assume it is malicious. bit ly windowstxt 10 kms
The script you referenced essentially automates the following steps: The search term bit ly windowstxt 10 kms
Initial Analysis
Introduction