ME FW Update Failed, please try again!

I have Optiplex 7070.  I did clean Win 11 install using MS media.  No issue no error.  I did not install any Dell driver manually.  You can try a clean install on a test hard drive to see if the error goes away.

Okay thank you.

I try it next week.

Yesterday i did a clean install Win 11 but the error doesn't go away.

Try clear CMOs settings via motherboard jumper. Replace CMOs battery w a new one since the pc was originally released in 2019, now 5 years old.

If your desktop computer was produced before April 2020, the computer most likely has a jumper-based reset.

PS Desktop computers manufactured after April 2020 use the RTC Reset ability.

For desktop computers that use RTC Reset, hold the power button for 30 seconds.

Yesterday the Cmos battery replaced and RTC reset.

Error doesn't go away

This thread may help.  Just remember as it mentions specific BIOS versions, your BIOS may be different.

Linked in that thread is something I ran across: <Link broken. DELL-Admin> The caveat is some say in other community forums that updating BIOS doesn't work.