When the PC slows down too much or we notice that it takes a long time to start up, it may be a good idea to reinstall Windows, so as to start over again without wasting time understanding the origin of the problem.With modern operating systems It’s a breeze to reinstall Windowsconsidering that we can act without having to insert any disk or USB stick into the PC and, even more importantly, without losing personal files such as documents and photos; we will instead always have to reinstall the programs, unless we choose i programmi portable.
In the following guide we will show you how to reinstall windows 10 and 11 without diskusing the reinstallation procedure which restores the operating system to its initial settings without losing any personal files (the procedure we recommend you always carry out unless there are particular needs).
READ ALSO -> How to Backup in Windows 11
1) Reinstall Windows 11 without disk
To immediately reinstall Windows 11 without any disk, press WIN+I on the keyboard when we open the desktop, let’s take us to the path System -> Recovery and press the button Reset your PC.
In the new window we press on Keep my fileswe choose as the reinstallation option Download da cloud (which will use the Internet connection to download the latest version of the system), we press on Following and we wait for the download to start and follow the procedure until the restart; after some time (depending on the speed of our disk and computer) the Windows PC will be as good as new, with our personal files still in their place.
If your PC doesn’t start properly we can reinstall Windows by forcibly restarting the PC three times in a row (by holding down the power button on the Windows logo or waiting for the error screen to appear three times), starting the Windows recovery environment and, on the screen will appear, take us along the path Troubleshoot -> Reset your PC and repeat the reinstallation steps, taking care to select Keep my files e Local reinstallation as options for recovering from this mode.
To learn more we can read our guide on how to reset Windows 11, reset from scratch without losing data.
2) Reinstall Windows 10 without disk
Windows 10 the diskless reinstallation procedure it is very similar to the one seen on Windows 11with some minor differences in the settings menu.
To proceed with restoring Windows 10 without using any disk, press WIN+I on the keyboard, let’s get on the path Update & Security -> Recovery and this time we press the button Startpresent under the section Reset your PC.
Now all we have to do is repeat the steps we have already seen for Windows 11: select the item Keep my fileswait for the summary window to appear, press on Following and wait until the system restarts. The PC will restart and, after some time, we will see Windows 10 restored to its initial settings, with our personal files saved in the user folder.
An alternative method to reinstall Windows 10 plans to take us on the journey Settings -> Update & Security -> Recoverypress on Restart now and wait for it to reboot into the recovery environment, so you can restore as seen on Windows 11.
We have written a guide on how this procedure works clean your PC of all programs and apps in one go.
Conclusions
These are the ways of format Windows and perform a fresh installation on a computer with Windows already installed, without needing to use an installation disc or USB stick with the system image preloaded.
The procedure integrated within Windows It definitely made it easier to restart in case of problems, but it is still worth taking into account the loss of programs (which will have to be reinstalled). On this topic we can read the guide above how to backup installed programs and settings on Windows.
To learn more we can read our guides on how to use system restore in windows 10 and 11are how to open windows 10 recovery console come on how to create a windows recovery disk to repair your system.
If the integrated recovery system does not work we suggest you read our article on how to create a recovery USB stick in Windows 10 and 11.