Program GUI looks blurry in high-resolution monitor | Windows 10

I have some settings that I can recommend to fix the issue, EBFinancials.

Changing your default settings to get the best results may resolve your blurry monitor. To do this, you'll have to change the display settings first. I've added some steps below for your guide:

1. Close QuickBooks Desktop.
2. Open the Windows Start menu.
3. Type "QuickBooks" into the search. Then right-click the QuickBooks icon and select Open file location.
4. In the folder, right-click the QuickBooks.exe file and select Properties.
5. o to the Compatibility tab.
6. Select the Disable display scaling on high DPI settings checkbox. You can also select Change high DPI settings and then Override high DPI scaling behavior.
7. Select Apply and then OK.

Once done, you can try opening QuickBooks. If you're still getting the issue, proceed to the steps below to adjust your view preferences:

1. Go to the Edit menu and select Preferences.
2. Select Desktop View from the list and then the My Preferences tab.
3. In the View section, select the One Window option. Then select OK.

If it still doesn't resolve the issue, change your Window display settings. Here's how:

1. Follow the steps from Microsoft to reset the default display settings for Windows 10 and Windows 8.
2. Set your screen resolution to at least 1024 x 768. We recommend 1920 x 1080 for the best display.
3. When you're done, reset your computer, open QuickBooks and your company file.

Furthermore, you may also experience issues when printing in QuickBooks Online (QBO): Fix QuickBooks Online Printing Issues On Browsers For Windows.

Drop a comment below if you need anything else about issues with your monitor when running QuickBooks. I'll always be right here to help you. 

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The 1st option fixed my display issue. Thank you.

Did you have the exact same problem?

No. 6:
I) I don't have Disable display scaling on high DPI settings but Disable fullscreen optimizations. Are they the same?

II) When checking Override high DPI scaling behavior, there are three (3) options to choose from:
Application, System and System (Enhanced). Which one should be chosen?

After applying all the changes in your instructions, the blurry view was indeed resolved, BUT, other issues occurs - Some parts of the GUI is very small (so small to be read by human eye). Examples for parts that this occurs at: The text PAID [Date] at the top left corner when opening an invoice, or the colorful section below the My Shortcuts pane
So I guess there is no way to achieve optimal view on this monitor I am using.
It is NOT 1024 x 768 or 1920 x 1080 as recommended by you but 2560 x 1440 (High Resolution).
I guess this resolution is too high for the program and nothing can be resolve it.

I didn't try your part of Window display settings as the recommended setting by the system is the high one (2560 x 1440). If I choose what you suggest it will mess up other programs that run at the same time.

I'll help you choose the appropriate settings to use, @EBFinancials.

I appreciate all your efforts so far in resolving blurred vision. It's my pleasure to provide the differences between the various settings you've mentioned. This way, I can guide you accordingly. 

The Disable display scaling on high DPI will use the usual behavior of your computer. Applications that don't respect system DPI settings will be bitmap stretched to appear sizeable, so it is easily readable. Inversely, Full-Screen optimization is a feature on Windows devices that helps them function better. This will enhance the CPU and GPU resources for a particular process. That said, the two settings are more likely the same. 

Also, the difference between the 3 DPI override scaling behavior options is as follows:

• The Application setting is previously referred to as Disable display scaling on high-DPI settings. It also forces the process to run in per-monitor DPI awareness mode. Windows will be prompted not to bitmap stretch UI (User Interface) from the in question when the DPI changes.
• The System will bitmap stretch the UI when the DPI changes.
•  The System (Enhanced) setting is for applications that are based on Windows GDI or Graphics Device Interface (GDI) scale. It will DPI scale the application on a per-monitor basis. That means that the application will become per-monitor DPI-aware.

With this, I'd recommend choosing the appropriate setting that will conform to your computer. 

Regarding the interface, which is very small, I recommend using the One Window view. By doing so, you can see your buttons and menus easily. You can follow the steps provided by my peer above. 

Moreover, you have an option to reach an IT professional regarding the display parameters of your computer window. They can come up with options on this matter.

Lastly, I've collected some of our resources that you can use for reference in case you can encounter some screen issues in your QBDT: 

• Fix issues when QuickBooks has stopped working
• Which Windows 10 version works best for QuickBooks Desktop?

Please let me know if you have other concerns or questions in mind. Know that I'll be around to help you anytime. Keep safe, and have a great day ahead, EBFinancials.