Hop this post finds you all well...
Immediately, after dell recommended (April 4) update for inspiron 24-7459, i got this massage:
"The ac power adapter wattage and type cannot be determined, Please connect to a Dell 130 W AC Adapter................."
The power adapter is the original (equipped with system).
I purchase it on Jan 22 2016, less than 80 days.
I cannot access my desktop, where i saved important files.
Any id what is the solution for this issue, How can i restore my system to a previous restore point .
Your help will be appreciated.
Despite the problem lasted several hours on that particular day, and it happened three or four times after, I made a lot of troubleshooting (trials/tests) to resolve.
Most are System power discharge, Power adapter/cord disconnect/connect trials, Voltage regulator measurement tests, Wall outlets switching trials, and Main power breaker reset trials.
Finally, I discover that my trusted Power Regulator/stabilizer (STAC from Japan) is not getting along with my New Inspiron 24-7459, otherwise, it is working fine with my family Dell and Acer computers.
I connected it directly to the wall outlet using (Powermatic) surge suppressor instead of the STAC regulator, and since then its working fine.
The bottom line:
1- The ac power adapter is sensitive.
2- Check the line for posable unclean electricity power.
Hope this is beneficial and helpful for you all.
Jubail, Saudia Arabia