StreamUpdate.exe.NOPE
Have done that a time or 2 but used StreamUpdate.exe.NOT, lol.
But most times I found, if it ever even pops up, is just X it out.
If you do need the update, go to the forum or directly to (
here) to always get the latest full offline installer.
SF is getting so slow, mainly loading the provider sites, and I don't feel like tracking it down, might just be the huge increase in installer file size since 6201.
Don't even bother hoping that will be addressed by the SF developer anytime soon.