I had the same issue on my computer. If the black spot stays in the same place all the time—even after changing wallpapers, opening different programs, or restarting the PC—it is usually not a software problem.

Possible causes include:

– Dead or stuck pixels – a small cluster of pixels may have stopped working.
– Screen pressure damage – the display may have been pressed or impacted, causing internal LCD damage.
– Dust or debris inside the screen – more common on older monitors and laptops.
– LCD panel damage – if the black spot looks like an ink blot or is slowly getting bigger, the screen itself is likely damaged.

A quick way to check is to take a screenshot. If the black spot does **not** appear in the screenshot when viewed on another device, the problem is with the monitor hardware, not Windows or your graphics card.

Unfortunately, if the spot is caused by physical screen damage, there is usually no permanent fix other than replacing the display panel or monitor. If it’s just a few stuck pixels, you can try a pixel-fixing tool, but success is not guaranteed.

Can you describe the size and shape of the black spot (tiny dot, cluster of dots, or large dark patch)? That can help identify the exact cause.

Collate means the printer will organize pages in the correct order when printing multiple copies of a document.

For example, if your document has 3 pages and you print 2 copies:

With collate ON:
Copy 1 → Page 1, Page 2, Page 3
Copy 2 → Page 1, Page 2, Page 3

With collate OFF:
Page 1, Page 1
Page 2, Page 2
Page 3, Page 3

You usually notice the difference only when printing multiple copies. If you print just one copy, the output looks the same.

I recently started using a scanner myself, so I can share the basic step-by-step process that worked for me in a simple way.

First, I connect the scanner to my computer. Most modern scanners work through USB, and many also install drivers automatically. If not, I just install the software that came with the scanner or download it from the manufacturer’s website.

Once it’s connected, I place the document face-down on the scanner glass and make sure it’s aligned properly with the corner markers. I close the lid to avoid any light or blur issues.

Then I open the scanning software on my computer. This is where I choose the scan settings. For documents, I usually select 300 DPI because it gives a good balance between clarity and file size. If I’m scanning photos, I sometimes go higher, like 600 DPI.

After that, I choose the file format. I normally use PDF for documents because it keeps everything organized, and JPG for photos if I want individual image files. Most scanning software also lets me preview before scanning, which helps me adjust alignment if needed.

When I hit scan, I wait for it to process and then save the file in my desired folder. I usually rename it immediately so I don’t lose track later.

For better quality scans, I’ve found a few simple tips helpful: keep the glass clean, avoid moving the document while scanning, and use higher DPI only when needed (because very high resolution creates large files). If text looks blurry, I double-check alignment and make sure the lid is fully closed.

Once you do it a couple of times, it becomes very straightforward.

I had a similar issue before where the cursor worked fine but the scroll wheel just stopped responding. In my case, it turned out not to be anything major, just a mix of settings and wear.

A few things you can try:

– First, check if scrolling doesn’t work everywhere (browser, files, settings). If it fails in all apps, it’s likely system or hardware-related.
– Go to your mouse settings and make sure scrolling is actually enabled and not set to something like 0 lines.
– Try updating or reinstalling the mouse driver from Device Manager — that fixed it for me once.
– Plug the mouse into a different USB port or test it on another computer. This helps confirm if it’s the mouse itself.
– Also, clean the scroll wheel — dust buildup can stop it from registering movement.

In my case, the mouse worked fine on another system, so it was a driver issue. But if yours doesn’t scroll anywhere, the wheel might just be worn out and need replacement.