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**shaidul** · 11-15-2015, 10:20 AM

yes it came back this morning and also came last night

**Compton** · 11-15-2015, 11:38 AM

ok how many memory do you have install ?

you will have to test one memory at time

how to write memtest86 to a flash drive

**shaidul** · 11-15-2015, 12:11 PM

what will this memtest86 do? and why do i need to do it?

**Compton** · 11-15-2015, 12:15 PM

because if you have bad memory

it can cause that problem memtest86 will test your memory

remember you have to test one memory at a time

**shaidul** · (This post was last modified: 11-16-2015, 04:00 PM by shaidul.)

how will i test one memory at a time?

Alright,I have put memtest86 in a flash drive or as said in the link given before.What next?

**Compton** · (This post was last modified: 11-16-2015, 04:50 PM by Compton.)

#1 question

if you have 2 memory sticks install remove one memory

leaving one memory stick with one memory stick install

you will start the test after testing that memory stick

you will then remove that memory stick

you will then place the other memory stick in for testing

do you have a desktop or a laptop?

#2 Question

you will need to boot from the flash drive

**shaidul** · 11-16-2015, 05:05 PM

In Question #1 you meant that i have to install memtest86 in two flash drives? And I have a laptop

In Question #2,how will i boot from the flash drive in windows 8?

**Compton** · 11-16-2015, 05:11 PM

no you will only install memtest86 on one flash drive

what is your laptop brand and model number ?

**shaidul** · (This post was last modified: 11-16-2015, 09:01 PM by shaidul.)

i told you earlier its brand is hp and model number is K7Q70EA#AB7

The above is the product number and this is the serial number CND445G94P.

**Compton** · 11-17-2015, 12:17 AM

yes you did tell me the model number had a busy day forgot Smile

you only have one stick of memory so all you have to do is to boot from the flash drive

how to boot from usb on HP ENVY 15-k000nx

1) Insert the USB flash drive into a USB port and turn on the computer.
2) Immediately press the Escape key repeatedly, about once every second, until the Startup Menu opens.

3) Press F9 to open the Boot Device Options menu.
4) Use the up or down arrow key to select the USB flash drive, and then press Enter .

NOTE: If you cannot select the USB flash drive from the Boot Menu, disable Secure Boot and enable Legacy Support in BIOS. For detailed instructions, see the Disabling Secure Boot on a notebook computer (Windows 8)

after running the test, can you take a photo and post it here?