Windows 10: Changed to UEFI in bios from Legacy and now i boot up slower and lag while playing games

Hi. I use a dell xps 15 i9 4070 and i'm experiencing a slow down from previous time. A week ago I disabled some processes that are in the background. I disabled every process besides the microsoft ones and i think that is amounting to my issue. I'm trying to update the bios and it's not letting me.

:)

 

HELP!!! UEFI boot is slower than legacy boot

I had freshly installed windows 10 in my (hp 15-be020tu) notebook . Before installing iso in uefi mode ,i had install windows 10 in legacy mode and that was atleast booting a bit faster and apps were working faster . But when i shifted to uefi mode my laptop
started to boot slower than legacy boot . And when i start to use any application ,it stucked for few seconds. I even had removed the unwanted bloatware applications and disabled all startup apps which was not necessary and services even then it is booting
slowing and not working faster like legacy.

I have installed the latest bios version. My motherboard name is ( insyde 81eb ) bios version is f.49 .pls help me

 

Return to Legacy from UEFI - BIOS

Hi There

A while ago I was helped here to change from Legacy to UEFI. However, since then it seems, the Laptop (Latutide E6420) is running a bit slowly which was otherwise very quick until then. Now, it takes nearly a minute or so to boot up or shut down or even
to close a file. Just a couple of days ago, I updated the latest BIOS for this machine recommended by Dell.

I tried to go back to Legacy but the system was asking me to reset to UEFI or face boot problems. One advise said that I could disable 'Secure Boot' in Boot Manager and reset to Legacy. However, the Boot Manager is listed under UEFI Boot process and it only
starts Windows. Is there any way as easy as I changed it? This is absolutely under the hope that all will be as normal as it was in the beginning. Please give your thoughts and advice. Thanks.

 

Support Had Me Change From UEFI to Legacy mode in BIOS Re: DISASTER

This was Acronis True Image 2018 support not MS or Lenovo (P51). Those familiar with True Image know that you can create bootable media on a flash drive to run the software. No problem with True Image 2017 but True Image 2018 did not work. Although the flash drive loaded the program the GUI was garbled and I was unable to navigate. Support had me switch from UEFI back to Legacy and that was a bad idea. Sorry for the caps but this was what I wrote back to Acronis support. FYI the rest of the message was not in caps:

SUPPORT: I have discussed this issue with the Experts team and they have suggested testing whether changing from UEFI to Legacy mode in BIOS fixes the issue or not. This step is suggested for testing purpose only.THAT WAS A TERRIBLE SUGGESTION. I WENT INTO THE BIOS AND DID AS YOU INSTRUCTED AND CHANGED FROM UEFI TO LEGACY. I CLICKED EXIT AND SAVE AND WITH THE FLASH DRIVE PLUGGED IN THE 2018 BOOTABLE MEDIA I WENT TO BOOT MENU OPTIONS AND CHOOSE BOOT FROM FLASH DRIVE AND I WAS DROPPED BACK INTO THE BOOT MENU OPTION. SEE ENCLOSED PICTURE. I THEN SELECTED BOOT FROM THE SSD DRIVE AND I WAS AGAIN STUCK IN A LOOP THAT DROPPED ME BACK INTO THE BOOT MENU OPTION. I THEN TRIED BOOTING FROM THE SECOND INTERNAL HDD OPTION AND AGAIN WAS DROPPED BACK INTO THE BOOT MENU. I COULD NOT GET BACK INTO THE BIOS TO CHANGE BACK TO UEFI FROM LEGACY. I HAD TO DO A HARD SHUTDOWN AND POWER BACK ON AND ONLY THEN WAS I ABLE TO GET INTO THE BIOS AND CHANGE BACK FROM LEGACY TO UEFI.

This is a pic of the loop I was caught up in. Why do you all think I was not able to boot either from the flash drive or the SSD or the HDD once I changed from UEFI to Legacy in the BIOS? TIA.