Always scan .exe files with an antivirus or via VirusTotal before running them if you are downloading from a third-party mirror. How to Install IntelAndroidDrvSetup1.5.0.exe
If you are on Windows 10 or 11, you may need to Disable Driver Signature Enforcement in the Advanced Startup menu before installing legacy drivers. intelandroiddrvsetup150exe link
The community forums are the best place to find mirrors for this specific executable. Search the "General" or "Android Software and Hacking" sub-forums. Always scan
Comprehensive Guide to Downloading and Installing IntelAndroidDrvSetup1.5.0.exe Search the "General" or "Android Software and Hacking"
Partitioning and flashing firmware or custom recoveries (like TWRP).
Check the Intel Download Center (search for "Android USB Driver"). Note that they often list the most recent version (1.10.0), which is backwards compatible.
Try a different USB cable (preferably the original) or a USB 2.0 port. Modern USB 3.0/3.1 ports sometimes struggle with older Fastboot drivers.