My Dell inspiron 15 3000 has become too slow after the windows 10 upgrade. It takes minutes to start and desktop to appear. Th

[Kunj2012]

Windows 10 not working well.

 

[Petrossa]

You don't mention at all which CPU you have in that 3000 series laptop.
If you are running Celeron, however, it is to be expected that it is a little on the slow side.

Have all the drivers succesfully installed?

 

[Muhammed Shafi 126]

Hello,
I had this similiar issue with my Inspiron 15R (2011). I solved it. Just go to control panel > power options> click on "choose what power button do . Then click on "Change setting that are currently unavailable". then under SHUT DOWN settings uncheck "Turn on fast startup and click on save changes. Then restart your laptop ( it will boot up slowly ) . after restart just go back power options and check "Turn on fast startup" again.