A typical desktop setup finishes in about 15 to 30 minutes, though USB speed, disk type, and update choices can stretch it past 45.
Ubuntu usually installs faster than many people expect. On a modern laptop with an SSD and a decent USB stick, the actual install phase often lands somewhere between 15 and 25 minutes. Add slow storage, an older USB drive, encryption, dual boot partition changes, or a big batch of updates, and the total can climb toward 30 to 45 minutes.
That time range matters because “install time” can mean two different things. Some people mean the point from clicking Install Ubuntu to reaching the desktop. Others mean the whole job: downloading the ISO, writing the USB stick, booting from it, setting language and Wi-Fi, then finishing the first restart. If you count the whole process, most people should block out 45 minutes to 1 hour. If you mean the installer itself, it is often much shorter.
There is no single fixed number because Ubuntu adapts to the hardware in front of it. A clean install onto an empty SSD is one thing. Installing next to Windows on a packed drive is another. That is why the smartest answer is a range, not one neat number that sounds tidy but falls apart on a real machine.
What A Normal Ubuntu Install Time Looks Like
For a plain desktop install on a recent machine, Ubuntu feels brisk. Once you have booted from the USB stick and reached the installer, the copy-and-setup phase is often the longest stretch. On a modern NVMe or SATA SSD, the install itself can move along with little drama. You answer a few prompts, wait while files are copied, then restart into your new desktop.
On an older PC with a hard drive, the same install can feel slow in bursts. The installer may pause on one screen, jump forward, then pause again while it writes files. That does not always mean something is wrong. Mechanical drives read and write in a way that makes long installs feel uneven.
Clean Install On A Newer PC
If you are wiping the disk and using Ubuntu as the only operating system, you are choosing the shortest path. The installer has fewer choices to sort out, disk setup stays simple, and the machine has less chance of tripping over old partition layouts. On a good SSD, this is the setup that often lands in the 15 to 20 minute zone once the installer begins.
Dual Boot Or Extra Security Settings
If you are installing Ubuntu next to Windows, expect extra time. You may need to shrink a partition, pick the target drive with care, and confirm boot settings. Add full-disk encryption and the job can stretch further. None of that is hard on its own, but each choice adds a bit more waiting and a bit more room for a pause.
Downloading updates during installation can also change the clock. If your connection is quick, this may only add a few minutes. If your connection is spotty, the install can crawl or appear stuck while it fetches packages in the background.
Ubuntu Install Time On SSD, HDD, And USB Setups
The storage devices in the chain matter more than many people think. People often focus on the target disk inside the PC, but the USB stick can be just as much of a bottleneck. A slow USB 2.0 stick can drag down the boot into the live session and make the installer feel sleepy before Ubuntu even starts copying files.
An SSD inside the PC gives Ubuntu the smoothest ride. File extraction, package setup, and the first boot usually feel sharp. A hard drive can still handle Ubuntu just fine, though the same workload takes longer to write and verify. If both the USB stick and the internal drive are slow, the total time can balloon.
RAM also shapes the feel of the install. Ubuntu’s published desktop baseline lists 4 GB RAM for a physical install, 25 GB of storage space, and an 8 GB USB stick for the install media. If a machine sits near that floor, the installer can still work, but it may feel less snappy while running from the live USB session. Canonical’s current desktop install docs also call for at least 25 GB of storage and recommend an 8 GB or larger flash drive. You can read the current Ubuntu Desktop installation steps and the published Ubuntu system requirements if you want to compare your machine before you begin.
What Happens During The Install
It helps to break the process into parts. A lot of the worry around install time comes from not knowing what the machine is doing. Once you know the stages, it is easier to tell the difference between a normal wait and a real snag.
Download And USB Creation
This part does not count toward the installer itself, though it does count toward the full job. You download the Ubuntu ISO, write it to a USB stick, then boot from that stick. On a quick connection and a decent USB writer, this can take 10 to 20 minutes. On slower internet, the download alone can take longer than the install.
Boot Into The Live Session
After booting from USB, Ubuntu loads a live desktop so you can test things or start the installer. This step is often overlooked when people talk about install time, yet it can add several minutes on older hardware. A slow stick, weak USB port, or old BIOS setup can all make the first boot drag.
Disk Setup And File Copy
This is the meat of the install. The installer asks where Ubuntu should go, whether to erase the disk or install alongside another system, whether to add extra software, and whether to pull updates during setup. Then it starts copying files, creating users, and preparing the bootloader.
Restart And First Boot
Once the installer says it is done, you restart, remove the USB stick, and boot into the fresh system. That first boot may take a little longer than later boots as Ubuntu settles a few items in the background. That is normal.
| Install Stage | Typical Time | What Can Slow It Down |
|---|---|---|
| ISO download | 5 to 20 minutes | Slow internet or crowded mirror |
| Write USB installer | 5 to 15 minutes | Old USB stick or slow writer app |
| Boot from USB | 2 to 8 minutes | USB 2.0 ports, older firmware, weak stick |
| Language, keyboard, Wi-Fi | 2 to 5 minutes | Network setup or manual choices |
| Disk selection and partition checks | 3 to 10 minutes | Dual boot, multiple drives, manual partitions |
| Main file copy and package setup | 10 to 25 minutes | Hard drives, encryption, extra packages |
| Restart and remove USB | 2 to 5 minutes | Slow shutdown or missed boot order |
| First login after install | 1 to 3 minutes | Initial indexing or pending updates |
What Makes Ubuntu Take Longer To Install
The biggest delay is often storage speed. A fresh SSD install can feel clean and quick. A tired hard drive with years of wear can make the same Ubuntu version feel stubbornly slow. The USB stick matters too. Cheap sticks are fine for light file transfer, but not all of them behave well when used as boot media.
Disk choices can also stretch the clock. Full-disk encryption adds setup work. Dual boot adds more decision points. Manual partitioning can take longer still, not because Ubuntu is slow, but because careful humans should move slowly when they are touching partitions.
Network choices matter in a sneaky way. If you tell Ubuntu to fetch updates during installation, the installer may spend extra time online. That can save time later, yet it can also make the install feel longer right now. A weak Wi-Fi signal turns that trade into a slog.
Then there is hardware compatibility. Ubuntu works on a wide range of PCs, though odd storage modes, BIOS settings, or graphics quirks can create stalls before the real install even begins. Intel RST is a classic one. If a machine uses it, Ubuntu may block the install until you change that setting.
Finally, your own choices shape the time. A clean wipe is quicker than a cautious dual-boot setup. A plain desktop install is quicker than one where you stop to inspect every option, which is often the right move if the machine holds files you care about.
Before You Start So The Install Does Not Drag
A little prep can shave off a surprising amount of time. Start with a solid USB stick. Use one that is at least 8 GB and in decent health. If you have both USB 2.0 and USB 3.x ports, use the faster port when the machine allows it. That alone can trim minutes from boot and file copy stages.
Also check that the machine has enough free storage. Ubuntu’s current desktop docs ask for at least 25 GB of storage, and the Ubuntu system requirements page lists 25 GB for a normal desktop install, with less space only for a minimal setup. If your disk is packed, clean it first. Running into space trouble halfway through a setup is a rotten way to spend an evening.
Back up your files before touching partitions. This is not about Ubuntu being risky. It is about humans clicking the wrong drive when they are tired. If you plan to install next to Windows, turn off hibernation, leave free space ready, and know whether Secure Boot or special storage modes are enabled.
One more smart move: decide before you start whether you want updates downloaded during the install. If your internet is good, doing it right away can be neat. If your connection is shaky, skip that step, finish the install, then run updates once the machine is on the desktop and easier to troubleshoot.
When Ubuntu Can Be Installed In Under 20 Minutes
Ubuntu can feel almost startlingly quick on the right machine. A newer laptop with an NVMe SSD, 8 GB or more of RAM, a fast USB stick, and a clean erase-and-install choice is the sweet spot. In that case, the installer itself may finish in 15 to 20 minutes, and the whole task from booting the USB to first login can stay close to half an hour.
This is also the case where Ubuntu tends to feel smooth during the live session. Menus open right away, the installer reacts quickly, and the progress bar moves with few long pauses. If you have ever seen someone say Ubuntu installed “in no time,” this is usually the setup they had.
When It Can Take 45 Minutes Or More
Longer installs do happen, and they are not always a sign of trouble. An older hard drive, a slow USB stick, weak Wi-Fi, full-disk encryption, and updates pulled during setup can add up fast. Dual boot on a machine with years of Windows history can stretch the process too, since you may spend extra time shrinking partitions and checking boot settings.
The same goes for low-end or aging hardware. Ubuntu may still install and run, but the live session can feel laggy, which makes each step seem longer than the clock says. That is why a 25-minute install on paper can feel like a one-hour job in the real world.
| If You Notice This | Likely Reason | What To Do |
|---|---|---|
| Stuck a long time before the live desktop appears | Slow USB stick or old USB port | Try a faster stick or another port |
| Installer crawls during file copy | Hard drive or encryption overhead | Wait longer, then test disk health later |
| Install pauses while online | Updates downloading on weak Wi-Fi | Skip updates during install next time |
| Cannot move past storage screen | RST or disk mode issue | Check firmware storage settings |
| Long delay after restart | First boot finishing setup tasks | Give it a few more minutes |
How Long Does Ubuntu Take To Install? What Most People Should Expect
For most home users, the safe expectation is simple: budget 45 minutes for the whole job and expect the installer itself to take around 15 to 30 minutes. That range covers the common cases without sugarcoating the slower ones. If your PC is recent and you are wiping the disk, you may beat that. If you are dual booting on an older machine, you may run longer.
The good news is that Ubuntu rarely asks for much hand-holding once the install has truly begun. The bigger time swings usually come from the setup around it: writing the USB, booting the live session, choosing partition options, and deciding whether to pull updates during installation.
So if you are planning your evening, do not set aside just 15 minutes because someone online said Ubuntu is quick. Give yourself enough room to work calmly, back up files, and double-check the target drive. A relaxed install is often a faster install, because you avoid the slowest mistake of all: doing it twice.
References & Sources
- Ubuntu Desktop Documentation.“Install Ubuntu Desktop.”Provides Canonical’s current desktop installation flow, storage guidance, USB media size, and installer notes used in the article.
- Official Ubuntu Documentation.“Installation/SystemRequirements.”Lists Ubuntu Desktop baseline hardware details such as RAM, storage, display, and installer media needs.
