Hi carp1959 (Timmy 2 Toes) — that behavior usually happens when Windows is set to Slideshow or Windows Spotlight, or when a theme/app keeps switching your wallpaper.
1) Check the Windows background mode (most common)
Right‑click an empty area on the desktop → Personalize
Go to Personalization → Background
Look at the “Personalize your background” drop-down:
If it says Slideshow → change it to Picture or Solid color
If it says Windows spotlight → change it to Picture or Solid color
If you want a solid color:
Select Solid color and pick the color you want
Expected result: your desktop should stop switching to random pictures.
2) Make sure a Theme isn’t changing it
Settings → Personalization → Themes
Choose a basic theme (or “Windows (light/dark)”) and then re-set Background to Solid color
Also check: Personalization → Colors
Turn Off “Automatically pick an accent color from my background” (optional, but can make things seem like they’re changing)
3) If it still changes: look for syncing or a wallpaper app
A) Turn off theme syncing (if you use a Microsoft account on multiple PCs)
Settings → Accounts → Windows backup (or Sync your settings depending on build)
Turn Off syncing for Personalization / Theme
B) Check for Dell/3rd-party wallpaper software
On Dell Inspirons it can be something like MyDell/Dell apps, or any wallpaper changer you installed.
Settings → Apps → Installed apps
Look for anything like “Wallpaper”, “Dynamic”, “Changer”, “Spotlight”, “Dell…”
Uninstall/disable it temporarily to test
4) Quick questions so I can narrow it down
Is it changing on the desktop background, the lock screen, or both?
In Settings → Personalization → Background, what does the drop-down currently say: Solid color / Picture / Slideshow / Windows spotlight?
About how often does it switch (every minute, hourly, daily, after restart)?
Reply with those answers and I’ll tell you the exact setting to change next.
Yep — if they’re seeing photos cycling “by themselves” (especially right after sign-in), an auto-start slideshow is a prime suspect. Here are the usual places to check in Windows 11 / Windows 10:
1) Desktop background slideshow
Settings → Personalization → Background
If it’s set to Slideshow, switch to Picture (or Solid color).
2) Lock screen slideshow / Windows Spotlight
Settings → Personalization → Lock screen
If it’s Slideshow or Windows spotlight, change to Picture (or disable slideshow).
Disable anything like Microsoft Photos, Photo viewer, Wallpaper, Slideshow, OEM media, etc.
Also check the Startup folders:
Press Win+R → type shell:startup
Press Win+R → type shell:common startup
Remove any shortcut that launches a slideshow/viewer.
5) Task Scheduler (common for “it starts by itself”)
Start → search Task Scheduler
Look under Task Scheduler Library for anything that triggers At log on or At startup and launches a photo/viewer/wallpaper app.
6) If it’s only happening in a browser
Sometimes people have a tab/session restoring into a “photo slideshow” site:
Edge/Chrome settings: “On startup” → set to Open the New Tab page (instead of “Continue where you left off”).
If you tell me what exactly starts (Photos app full-screen? desktop wallpaper changes? lock screen changes? screen saver?) and when (boot, sign-in, idle), I can point to the most likely setting in one step.