PC Everything on Screen Is Huge (or Tiny) After an Update
In plain English: You restarted after an update and now everything on the screen looks huge, or so small you can barely read it. This guide explains device problems in plain English and starts with the fix that makes the page readable first, so you can follow the steps without guessing.
First safe step: Before you change any display setting, make this page easy to read. Hold Ctrl + + to make the text larger, or Ctrl + - to make it smaller.
You restarted after an update and now everything on the screen looks huge, or so small you can barely read it. This guide explains device problems in plain English and starts with the fix that makes the page readable first, so you can follow the steps without guessing.
In most cases, the update has only reset the size setting, and that is safe to change back in Settings. If the display driver is missing, the screen may look stretched, the size options may be greyed out, or the picture may stay wrong after you change the size. That second case needs a driver fix, not more size changes.
Before you change anything, use the two-minute check in the next section to see which one you have. It shows the size setting and the driver in one place. If the driver is missing, use how to get the right driver from your PC maker instead of trying size settings again.
Part of the No Sound, No Wi-Fi, Camera Not Working: Device Problems in Plain English series, the pillar guide for this cluster.
Make the screen readable first, before you fix anything
Before you change any display setting, make this page easy to read. Hold Ctrl + + to make the text larger, or Ctrl + - to make it smaller. Press the keys a few times until the words sit at a size you can read without strain.
If the PC screen is still too hard to use, open this page on your phone or tablet instead. You can read each step there and follow it on the PC. Keep the phone close, and work through one step at a time.
Do not guess at display settings while the text is unreadable. A wrong change can make the screen harder to use, and it can hide the cause. If the whole screen looks zoomed in, rather than just this page, check whether Magnifier was switched on by accident before you change anything else.
Once the page is readable, you are ready for the next step. Do not rush the fix, and do not change more than one setting at a time. The two-minute check in the next section will show whether the size changed or the display driver is missing, so you can fix the right one.
The 2-minute check: scaling problem or missing display driver?
Do this check before you change a setting or reinstall anything, because the fix for a size reset is not the same as the fix for a missing driver. It takes about two minutes and uses two places on your PC: the size settings, and the name Windows uses for your display. Together, they show which cause you have, so you can pick the right next step.
Open Settings, then System, then Display. Note the number under Scale, such as 100% or 150%, and the number under Display resolution, and write both numbers down before you close the window. If the resolution line says 'Recommended;' next to a normal size for your screen, Windows is still reading the display the right way, and a changed scale number is often the whole story.
Next, open Device Manager and expand Display adapters. Look at the name listed there, and note if Windows shows a small yellow warning mark beside it. If you see Microsoft Basic Display Adapter, Windows is using a basic driver and does not have the right one loaded, and that name is the clearest sign the driver is missing.
Sharp text that is too large or too small, with a normal resolution, points to a scaling reset. A low resolution you cannot change, or a greyed-out list, points to a missing driver, and that is when you need how to get the right driver from your PC maker. If both lists look normal but the screen looks zoomed in, check whether Magnifier was switched on by accident.
If it is scaling: put the size back in two safe steps
Open Settings, then go to System and Display. Under 'Scale;' open the list and pick the size marked 'Recommended;' for your screen. That is usually 100% on a smaller laptop screen and 125% or 150% on a larger or sharper screen, so pick the marked size rather than the one that looks familiar, then wait a few seconds for the screen to settle.
Next, under 'Display resolution;' open the list and pick the size marked 'Recommended;' too. Do not pick a higher size to make text smaller, or a lower size to make it larger. The Recommended size matches your screen, and the scale setting is the safe control for text and window size, so change the scale first if you need the text larger or smaller.
If they still look too large or too small, open the Start menu, choose your profile picture, then choose 'Sign out;' and sign back in. That lets Windows apply the new size to windows that were already open. It often clears a size that looks stuck after an update, so do this before you change the settings again or try a different size.
If you use a second screen, select that screen at the top of the Display page before you change anything on that screen. Each display keeps its own scale and resolution, so a laptop screen can look right while a monitor still looks huge. If the whole screen still looks zoomed in after both screens are set, check whether Magnifier was switched on by accident.
If the driver is missing: get the display back without a driver updater
Restart the PC once before you change anything else. A restart lets Windows load the driver again after the update, and it often puts the screen size back on its own. After the restart, open Settings, select Windows Update, then select Check for updates and install any driver update Windows offers, restart again if it asks, then look at the screen size.
If the size is still wrong, open Device Manager and open Display adapters. Look for your display name, Microsoft Basic Display Adapter, or a yellow warning mark, then right-click the adapter, select Properties, and read the status on the General tab. If it shows Code 28 and the message 'The drivers for this device are not installed', Windows has no working driver for that display on this PC.
Get a driver only from Windows Update or your PC maker, and follow how to get the right driver from your PC maker for the full download steps. Do not use a driver updater from an ad or a pop-up. Those programs can install the wrong driver, add software you did not ask for, or charge for a fix you can get for free.
If the driver is still missing after those steps, read your update history to find the update that changed the screen. That note helps you tell support or the maker which exact update came first, and it keeps the next safe step focused on that update. Do not try a second updater or a random driver file while you wait, because a wrong file can make the screen worse.
If it is still wrong: check the update and try the next safe step
If the size still looks wrong after the scale and driver checks, look at the timing. Open Update history and read your update history to find the update that changed the screen, then check its date against the day the screen changed. A match does not prove the update caused it, but it gives you a clear next step.
If that same update keeps causing the problem after a restart, you can think about removing it. Learn how to uninstall a bad update safely before you do anything, and remove only the update that matches the date. Do not remove other updates at random.
If sound also stopped after the same update, treat it as a second clue, not a second job. Use the checklist for no sound after the same update and work through those steps in order. It covers the sound checks in one place, so this page does not need to repeat them.
Before you remove an update, write down its name and date, then check the screen again after a restart. If the size is back to normal, leave the scale and driver settings as they are. If it is still wrong, the update was probably not the cause, and the driver check is the place to look again.
Frequently asked questions
Why did everything get bigger after a Windows update?
An update can reset the scale or resolution to a new value. A missing display driver can also leave the screen stretched, so check which cause you have before you change a setting.
Is it safe to change the scale back myself?
Yes. Changing the scale in Settings does not change files or install software. If the size does not settle, sign out and sign back in, then check the size again.
What if my resolution choices are grayed out?
That often points to a missing display driver. Restart the PC, then run Check for updates, and get the replacement driver only from Windows Update or your PC maker.
Neighbouring cases in this cluster: Code 10 'This Device Cannot Start': The Sound Card Version.
Conclusion
Most of the time, the fix is a choice between two causes. If the size changed but the picture stayed sharp, the update reset the scale. If the picture looks stretched and the size choices are locked, Windows is running without the right display driver.
Once the size looks right, leave the settings alone and use the PC as normal. If it changes after the next update, you will know which check to run first, and you will not need to guess at settings you cannot read.