Acer Aspire TC-895-UA92 Computer will not boot up,"inaccessible boot drive"

GRL
GRL Member Posts: 8

Tinkerer

I have a four-year old Acer Aspire TC-895-UA92 that shut down while I was saving a pdf file in Adobe. All my efforts to reboot the computer failed. Windows diagnostics told me two things: I have an "inaccessible boot drive" and "selected boot device is disabled in BIOS setup."

Windows offered multiple times to "automatically" correct the problem but characteristically failed each try.

Is this something that only a computer technician can fix or is there some software I can download from Acer and install via a USB port to correct?

Thanks for any advice someone can provide!!

[Edited the thread to add model name to the title]
[Edited the thread to add issue detail]

Answers

  • Puraw
    Puraw ACE, Member Posts: 18,760 Trailblazer

    Hi GRL,

    Thanks for the detailed post. Based on the “inaccessible boot drive” and BIOS boot device error, it sounds like your system either lost track of the bootloader or is reacting to a recent hardware change—especially if you upgraded RAM.

    Let’s walk through a clean install using a USB stick:

    1. Prepare the USB Installer

    2. BIOS Setup

    • Insert the USB stick, then power on and press F2 repeatedly to enter BIOS.
    • Enable Boot Menu and set USB as first priority.
    • Disable Secure Boot if enabled.
    • Save changes and exit.

    3. Boot from USB

    • Press F12 during startup to access the boot menu.
    • Select the USB stick and begin Windows setup.

    4. Clean Install Steps

    • Choose “Custom Install.”
    • If no drive appears, click “Load Driver” and point to storage drivers (Intel RST if needed).
    • Delete all partitions and install to unallocated space.

    📌 RAM Note: If you recently upgraded memory, reseat both sticks firmly. A loose or incompatible module can cause BIOS instability and boot errors. TC-895 supports DDR4 2666 MHz UDIMM—avoid mixing brands or speeds.