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167 articles covering known issues and general troubleshooting. Search by product or symptom to narrow the list.

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▦USB external SSD / M.2 SSD enclosureTroubleshooting guide

External SSD not reaching USB 20Gbps or USB4 speed: check PC ports, cables, hubs and Windows indicators

A USB 20Gbps or USB4 external SSD copies large files far below the maximum speed on its product page, no faster than a 10Gbps or 5Gbps product

Windows 11 / Windows 10 desktop or laptop PCs with a USB 20Gbps (USB 3.2 Gen 2x2), USB 40Gbps (USB4) or Thunderbolt external SSD or M.2 SSD enclosure attached, where transfers never reach the product's advertised speed and stay at 10Gbps or 5Gbps levels or lower
Checked 2026.09.13Read guide ↗
▦WindowsResolved

PC Reset or Recovery Fails After KB5063875

Settings > System > Recovery > Reset this PC fails

Windows 11 23H2/22H2 (Targeted by KB5066189 in this record. The same symptoms were also reported in other Windows 10 and LTSC editions, but the corrective update to be applied differs depending on the OS)KB5063875
Checked 2026.09.05Read guide ↗
▦Windows 11 / Windows 10 external USB storage (removal policy, write caching, USB selective suspend), bus-powered and self-powered USB hubsTroubleshooting guide

External drive disconnects in the middle of a large copy: check power delivery, the removal policy and USB power management in that order

An external HDD or SSD vanishes partway through a multi-gigabyte copy or backup, and File Explorer stops the copy with an error such as the device being unreachable

Windows 11 / Windows 10 (the default removal policy is Quick removal from Windows 10 version 1809 onwards). For the power-delivery side, Buffalo’s published explanation of self-powered and bus-powered USB hubs is used (published 2015-12-10, updated 2017-05-19; the figures are for USB 2.0 hubs)
Checked 2026.09.19Read guide ↗
▦WindowsResolved

Microsoft Changjie IME Input Fails After KB5062552

Unable to create or select a word after entering a complete character structure

Windows 11 23H2 and Windows 11 22H2 Enterprise/Education after KB5062552. The KB5062663 preview fix is listed for 23H2; do not install that package on 22H2 or another Windows version.KB5062552
Checked 2026.09.06Read guide ↗
▦Gaming monitor OSD settingsTroubleshooting guide

Monitor shows "No Signal" after changing OSD overclock or DisplayPort settings: how to get the picture back

Right after turning on overclocking or raising the maximum refresh rate in the monitor OSD, the monitor shows "No Signal" or the screen stays black

Windows 11 / Windows 10. The screen shows "No Signal" or stays black right after you changed overclocking (a higher maximum refresh rate) or the DisplayPort version setting in the monitor's on-screen menu (OSD), or after adding a custom resolution in the graphics driver
Checked 2026.09.13Read guide ↗
▦PCs whose WinRE (Windows Recovery Environment) is serviced through Windows Update, on the versions KB5028997 lists under Applies ToTroubleshooting guide

Only the WinRE update keeps failing: confirm event ID 4502 before you touch the recovery partition

The same update fails over and over in Windows Update, and retrying only adds another failure to the history

KB5028997 lists Windows 10 (version 1607, 21H2, 22H2 and others), Windows 11 version 21H2, 22H2 and 23H2, and Windows Server 2016 / 2019 under Applies To (page read on 2026-09-20). Microsoft does not state that the same procedure applies to versions that are not on that list.
Checked 2026.09.21Read guide ↗