In this article, you will find the 4 easy ways lớn delete Windows.old folder after upgrading to Windows 10. Just try it now.



/ Last updateDecember 13, 2021

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What's the Windows.old Folder?

The Windows.old folder is a thư mục in system partition (typically C: drive) lớn save sầu the previous version of Windows system when you tăng cấp your Windows to lớn a new one without formatting your hard drive or doing a clean install. The Windows.old folder contains previous Windows, program files, và all the data of Users. It was first introduced by Windows Vista, also applies lớn Windows 7/8/8.1/10.

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What does Windows.old thư mục can vị for you? First, it allows you khổng lồ rollbaông xã khổng lồ previous Windows. For example: you’ve sầu upgraded your Windows 7 to Windows 10 & then you can also revert baông chồng khổng lồ Windows 7 with the Windows.old thư mục if you dislượt thích this version of Windows. Second, it gives you a chance khổng lồ restore some individual files and programs from the Windows.old folder.

Windows.old thư mục will be deleted automatically after a month you upgrade. That's to say, you vày not need lớn manually delete this folder if your disk space is enough. But if your disk is in a low disk space, you can delete Windows.old whether in Windows 10/8/7.

Can I delete my Windows.old thư mục in Windows 10?

Many users report that the form size of Windows.old is too large and the system partition is filling up. Can I delete this thư mục for more space?

Yes, you can delete Windows.old thư mục khổng lồ free up space. However, you will no longer be able to lớn downgrade the current Windows lớn a previous version. To ensure the data and OS is safe, you are supposed lớn backup the entire system for Windows 10 recovery in case of unexpected system failure và other errors.

Backup Windows 10 before deleting Windows.old folder

I strongly recommended you backup Windows 10 to lớn an external storage device lớn ensure your data & OS valid & available. How khổng lồ backup Windows 10? The Windows 10 backup software AOMEI BackupperStandard will vì chưng this in the safest và easiest way.


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To backup Windows 10 PC, you can tải về AOMEI Backupper Standard and launch the program. Then, cliông chồng Backup and System Backup on the main console, select a location for your backup, clichồng Start Backup finally.

Also, you choose other backup solutions depending on your needs, such as, Disk Backup, File Backup, Partition Backup.


Tips:✍AOMEI Backupper will detect the system partition, system reserved partition and system recovery partition automatically, so there is no need khổng lồ select manually.✍You can configure the image with Options và Schedule if necessary.✍For the destination path, you can choose an external hard drive sầu, a USB flash drive, a NAS device or a network cốt truyện, etc.✍AOMEI Backupper also provides you System Restore feature, which allows you to lớn restore the image from external hard drive sầu or the storage you backup the system.✍If your computer is unbootable, you still can create a bootable truyền thông on a working computer, use it to start your computer và restore image.

Delete Windows.old folder in Windows 10 using Disk Cleanup

Windows old won’t be deleted automatically until 10 days later after you nâng cấp Windows from a previous version. The Windows.old is a system thư mục, so you cannot easily remove it. Want to không tính phí up space for C drive, you can delete this folder with Disk Cleanup utility. This is the most easer way.

In Disk Cleanup, you cannot see Windows.old, because it has a different name called Previous Windows installation(s). If you cannot find it either, you should cliông xã on the Clean up system files button first.

Tip: In case of you need the Windows.old thư mục later, you can backup Windows.old thư mục lớn external storage device before deleting it.

The following steps are about how to delete Windows old folder in Windows 10 without data loss.

Step 1. Press Windows + E lớn enter the File Explorer. Cliông chồng “This PC” at the left panel.

Step 2. Right cliông chồng the C drive under the “Devices và drives”, select “Properties”.

Step 3. In the next window, cliông chồng “Disk cleanup

Step 4. Click “Clean up system files”.


Step 5. Select “Previous Windows Installation(s)” only, then press “OK” to lớn start cleanup. You can delete other related files by your own needs.

Besides, you still can enter cleanup in the Windows 10 tìm kiếm box and finish the rest of steps with the on-screen instructions.

This method is suitable for Windows 10 as well as Windows 8/7, so you can use Disk Cleanup lớn delete Windows old in Windows 10/8/7.

Delete Windows.old folder in Windows 10 without Disk Cleanup

If you don’t want lớn use Disk Cleanup, you still can take advantage of the Storage sense feature khổng lồ remove sầu the Windows.old thư mục.

Step 1. Go khổng lồ Start > Settings > System > Storage.

Step 2. Slide to Storage sense tab và select Change how we không tính phí up space automatically option.


Step 3. Slide lớn Free up space now & tick Delete previous versions of Windows, then cliông xã Clean now.

Delete Windows.old folder in Windows 10 via Temporary files settings

Step 1. Go to lớn Storage and cliông xã Free up space now under the Storage sense tab.


Step 2. Under the Temporary files settings, tichồng Previous Windows installations & unkiểm tra other options.

Step 3. Click the Remove files button.

Delete Windows.old thư mục in Windows 10 using CMD

If you are familiar with command prompt, you can try lớn remove sầu Windows old in Windows 10 with CMD.

Detailed steps are below.

Step 1. Type cmd in the search box, select it & run as administrator.

Step 2. Type the following commands & hit Enter after each one.

takeown /F c:Windows.old* /R /A /D Y

cacls c:Windows.old*.* /T /grant administrators:F

rmdir /S /Q c:Windows.old

★Note:The first commvà takeown is used lớn give sầu ownership lớn the administrator group. The second commvà is to displays or modifies DACL (discretionary access control list) files. And the last one is to lớn remove a specific directory.

Step 3. Type exit lớn leave this window.

In the end

Reading here, you should delete Windows.old folder in Windows 10/8/7. And we must pay attention khổng lồ the safety of computer. You can clean install the operating system after the system crash, but you need khổng lồ spkết thúc much time in reinstalling programs. More seriously, your data will go forever when your computer does not work properly.

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To keep it safe, you need to lớn backup system, disk, partition, or files first, & then delete Window old in Windows 10/8/7.