Yes, you can remove the file from Windows.
Yes, you can remove the file from Windows.
I checked a few backup partitions and saw the file in question. It’s a 3.12GB file named 18362.30.190401-1528.19h1_release_svc_refresh_CLIENTCONSUMER_RET_x64FRE_en-gb.esd. Is it safe to remove it?
Based on a rapid online search, it seems to be an update pack for Windows 10. If you're able to remove it, it's likely unnecessary; if not, it might still be useful. I suspect the latter.