Can't download insider ISO files

 gautamajay52 There is another easier method than this one. For that scroll down. 

Hey, can you point me to some resources from where I can know how to install after downloading from uupdump??

After going to uupdump click on your desired version (in this case, it is "https://uupdump.net/selectlang.php?id=baed606a-3e38-4113-992a-1a2ffb238007

Select the language and after that, you can set the base editions you want to be available (the basic ones like Home, Pro, N, etc, and also I believe Windows Team doesn't work in W11). If you want more editions than that select "Download, add additional editions and convert to ISO" and select what editions you want (Will substantially increase the time it takes to download and then convert), if not, leave it as default and then if you want you can mess a bit with the Conversion Options (I recommend leaving it as default if you don't know what you're doing) and click "Create download package". It will now start downloading a ".ZIP" file that you have to extract for it to work properly. (Make sure that the directory name does not contain spaces) and then open "uup_download_windows.cmd" (assuming that you're on a Windows PC). That will start downloading the files for that specific version directly off of Microsoft's servers and not through a third-party and will then convert them into an ISO file. What I recommend is to leave that window selected and not go into other apps at least for the download process because your computer might blue screen otherwise (from my experience. I tried on multiple powerful computers <I'm talking 5000 series Ryzen 9 and 10th gen i9> and they have a higher chance of blue screening)

This is how you know when it's downloading and when it's converting.

Downloading (Black):

Converting (Blue):

(Or from the window names. "C:\WINDOWS\system32\cmd.exe" means downloading and "Administrator: UUP -> ISO v69" means converting)

The ISO will be located in ".\ISOFOLDER" (or will be put into the folder itself:

This could either way take some time. You have to be patient.

And also can you tell me if I will be able to update from the official updater or not after that??? Actually, I am in insider build but getting this error (Install error - 0x80073701) while installing the build, so decided to try ISO.

It is definitely not normal that you cannot update using the UUP (Unified Update Platform / Windows Update). You should be able to update using it. You could try following https://support.microsoft.com/en-us/topic/when-trying-to-install-updates-from-windows-update-you-might-receive-updates-failed-there-were-problems-installing-some-updates-but-we-ll-try-again-later-with-errors-0x80073701-0x800f0988-e74b3505-f054-7f15-ec44-6ec0ab15f3e0

And final, will my data be lost after installing from ISO??

To not lose files you will just extract the ISO file to a folder (this time it doesn't matter if the directory name contains spaces) and click on "setup.exe" and upgrade that way. (Do not power off the computer to install the update. That will erase files as that is the way to perform a https://www.pcmag.com/encyclopedia/term/clean-install)

If you do it that way, in theory, your files should be safe but as always, it is wise to have a backup at all times just in case something unexpected happens.

Method 2:

The easiest and the best way to be sure that the files are not corrupted (UUPdump messes up sometimes <has happened to me and I had to do a clean install> because it's not perfect) is to:

Write an email to "mailto:thewindowslibrary@gmail.com" saying that you need a specific version of Windows and you will get a response pretty quickly and a link to a verified, fully checked, and working ISO (using checksum) from Microsoft's website.

I hope I didn't miss anything and I helped you. If you need anything else please do not hesitate to write back! (it was a pain to write this because the only error I got was "Invalid HTML detected" lmao)