We repair and upgrade the HP ProOne 440 G9 All-in-One at our workshop in Bermondsey, from power and start-up faults to storage upgrades and data recovery. The HP ProOne 440 G9 All-in-One is a 2022 all-in-one PC with a 23.8-inch screen. Parts are matched to the exact chassis, so the model number matters when we quote.
- Model number
- 440 G9
- Released
- 2022
- Type
- All-in-one PC
- Screen
- 23.8-inch
- Storage
- M.2 SSD, plus a 2.5-inch bay on some configurations
- Memory
- SODIMM slots
Repairs we carry out on the HP ProOne 440 G9 All-in-One
Screen replacement
A cracked or dark 23.8-inch display is replaced with a matching panel. Where the picture is there but very dim, we test the backlight and its driver before condemning the panel.
Price confirmed before work starts
Windows repair and reinstall
The HP ProOne 440 G9 All-in-One shipped with Windows 11. We repair start-up faults, reinstall Windows cleanly with your files kept, and remove malware.
SSD and storage upgrade
The HP ProOne 440 G9 All-in-One has an M.2 slot and, on some configurations, a 2.5-inch bay. Machines that shipped with a hard drive are much faster once moved to an SSD.
Price confirmed before work starts
Memory upgrade
Most configurations of the HP ProOne 440 G9 All-in-One have SODIMM memory slots, so memory can be increased. We check what is fitted and the maximum the board supports.
We also carry out motherboard repair, overheating and fan repair, virus removal on the HP ProOne 440 G9 All-in-One, along with stand repair, no-picture and no-boot diagnosis, port repair, Wi-Fi and Bluetooth card replacement and data transfer to a new PC.
Known issues with the HP All-in-One, EliteOne and ProOne range
- HP all-in-ones use laptop-style components behind the display, which is removed to reach most parts.
- A black screen with the PC still running usually points to the panel or its backlight.
Data recovery from the HP ProOne 440 G9 All-in-One
The SSD in the HP ProOne 440 G9 All-in-One can be removed and imaged on our own equipment, so files can usually be recovered even when the machine will not start. Recent Windows machines often have device encryption or BitLocker switched on. If so we will need the recovery key, which is normally saved in your Microsoft account.
Estimate the cost with our data recovery calculator, or read about recovering files after a ransomware attack.
Where the HP ProOne 440 G9 All-in-One sits in the range
Its nearest relatives in the HP All-in-One, EliteOne and ProOne range are the older HP EliteOne 800 G8 All-in-One (2021) and the newer HP OmniStudio X 24 All-in-One (2026).
Questions
Can the SSD or memory in the HP ProOne 440 G9 All-in-One be upgraded?
The M.2 SSD can be replaced, and some configurations also have a 2.5-inch bay. Memory is in slots on most configurations and can be increased.
My HP ProOne 440 G9 All-in-One will not turn on. Is my data lost?
Usually not. The drive is separate from the fault in most cases, and we can remove it and copy your files even if the machine itself is not worth repairing.
Where do I find the model number on my all-in-one PC?
The model is on a label on the back, side or underside of the machine. For this model, look for 440 G9.
Can the HP ProOne 440 G9 All-in-One run Windows 11?
Yes. It shipped with Windows 11.