Getting dump files which we need for accurate analysis of BSODs. Dump files are crash logs from BSODs. If you can get into Windows normally or through Safe Mode could you check C:\Windows\Minidump for any dump files? If you have any dump files, copy the folder to the desktop, zip the folder and upload it. If you don't have any zip software installed, right click on the folder and select Send to → Compressed (Zipped) folder. Upload to any easy to use file sharing site. Reddit keeps blacklisting file hosts so find something that works, currently catbox.moe or mediafire.com seems to be working. We like to have multiple dump files to work with so if you only have one dump file, none or not a folder at all, upload the ones you have and then follow this guide to change the dump type to Small Memory Dump. The "Overwrite dump file" option will be grayed out since small memory dumps never overwrite. I am a bot, and this action was performed automatically. Please contact the moderators of this subreddit if you have any questions or concerns.

This tutorial works on all brand laptop /desktop working at windows platform. Follow these steps to fix your issue. · If you are getting the error "No Bootable device found"after updating Acer bios from 1.00 to 1.05 then follow these steps : · Forced shutdown your system by pressing the power key for little longer. · Now restart your laptop/desktop. · Press F2 key repeatedly and go to BIOS setup. · Now go into main and F12 Boot Menu: Enable. · Now to go Boot option/menu and change the boot mode from UEFI to Legacy. · Press F10 key and save and exit. · And now reboot your system · Check out the full article and video from the below link · https://techblogchain.com/fix-no-bootabl... · Other ways: · 1. Disconnect all peripherals of USB · In most cases, the issue of no bootable could get caused by the USB devices that you are using. So, the best way to deal with the issue is by disconnecting all the in-use USB peripherals. Also, you need to make sure that you plug out your USB keyboard and mouse as well to get rid of the problem. · 2. Check the cables · Moreover, the problem of no bootable device can also get caused by loose cables. So, you need to get the computer sure that you have the wires of your computer tightened when you are dealing with the problem. The first thing you can do is turning off your computer and then checking all the SATA cables and their connection with the hard drive and the motherboard. · 3. Set a good hard drive as the first boot device · Because the problem of ‘no bootable device Acer laptop fix’ in Acer might also be the reasons for the faulty hard drive, you need to set the right hard drive. · The steps to set the hard drive are · Power off your Acer device by holding the power button for 5 seconds · Long press the arrow button and then click the Boot tab. · Then, go to the Exit tab in the BIOS utility. · Choose the ‘Exit Saving Changes’ · Then, follow the steps and restart your computer. · And, you will get the desired results. · 4. Fix the damaged MBR · MBR is the sector in had which has the information about the load of the OS and the hard disk. The loss in the MBR will lead to bootable problems. Here is the command prompts for the ‘no bootable problem Acer laptop fix.’ · Bootrec /rebuildbcd · Bootrec /scanos · Bootrec/ fixboot · Bootrec /fixmbr · After you get done with the commands and your problem does not get fixed yet, you should try the following. · bcdedit /export C:BCD_Backup · c: · cd boot · attrib bcd -s -h -r · ren c:bootbcd bcd.old · bootrec /RebuildBcd · Hence you can fix the problem of no bootable device Acer windows 8. · 5. Build MBR again without Windows CD · While ‘no bootable device Acer laptop fix’ requires the installation of Windows CD, you can sometimes do it without using CD too. For that, you need to create an environment. To create an environment for MBR, you need to follow these simple steps. · At first, download the freeware and then install it on your computer. · Run AQMEI and then click on the make bootable media wizard. · Then, insert the bootable USB · You’ll see the option to rebuild MBR. Click on it. · Check out the full article : https://techblogchain.com/no-bootable-de...

There are some video instructions for resetting the Acer Supervisor password, for example How to remove bios password on all Acer laptops for free! Have a look and see if it helps you

yeah the screensaver would have nothing to do with the boot. most likely some internal damage or deterioration, is your computer old or have you ever been carelessly handling it in regards to airflow or liquids.