Windows 10: Windows 11 freezes and crashing - no bootable device

Hi guys, so I have an Acer Nitro 5 an515-45.I'm having issues with my laptop freezing and turns to crash and sometimes it appears to have no bootable device and this is Windows 11 previously was 10. So my laptop undergone a fix on the mother on the integrated circuit what the repair shop says since it exploded and had a smell around January 2nd this year. I had this laptop around 2021 and first had its issue around 2023 May which had no power so this is my 2nd time letting it fixed. Now that they went to repair it, it had power back on and they asked me to input my password, but long loadin

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all games crash!

ive watch my temps and both the cpu and gpu are within normal ranges. when it freezes it simply freezes the image and stops the sound. i must reboot to get back to windows.

 

all games crash!

I suggest you run rthdribl > http://www.daionet.gr.jp/~masa/archives/rthdribl_1_2.zip
Increase the window size step by step and watch your vga temps permanently.
What happens?
If it crashes, run at stock speeds as suggested before and retry.

P.S.: When your system locks, does the display signal turn off after a time?
Stuttering sound or no sound at all when freezing?
What X1800XT model do you own exactly?

 

Multi-bootable USB

Hey guys from TPU, couldn't find any specific thread pertaining to the question asked on title. As mentioned, I'm trying to create a bootable USB, but with many specifics boots available.

I've been trying to create one with multiple boot device including one that enables me to run Windows 10 directly on the USB Thumb Drive but to no avail.

The list of bootable images i'm trying to create are

1. Windows 10 (A full OS running from thumb drive)
2. Windows 10 ISO (Bootable disk image for fresh install)
3. MemTest86+

Have tried YUMI or UUI from the website USB PenDrive Linux but as this is my first time, i don't know how am i screwing up or am doing it right.. Anyone got a rough idea on a step by step guide? Thanks!