Windowblinds Has Detected A Problem With Core Files New -

If a simple reboot doesn't work, follow these technical steps:

import smtplib from email.mime.text import MIMEText

Some versions of WindowBlinds (particularly 10.x and early 11.x) had a bug where the error appeared falsely after waking from sleep or switching DPI scaling. Stardock fixed this in later updates. If you’re on an older version, via Stardock’s central app, Object Desktop Manager .

WindowBlinds works by hooking into the Windows Explorer shell ( explorer.exe ) and overriding the native theming engine (UxTheme.dll). The "core files" refer to:

Once resolved, WindowBlinds returns to full functionality — skins apply correctly, and the error no longer appears on boot or theme change.