If you upgraded Windows 10 from an old version of Windows, you have sầu a Windows.old thư mục on the C: drive sầu of your computer. In this post, we show you what Windows.old thư mục is, whether you can delete Windows.old thư mục và how to lớn delete Windows.old quickly.
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What Is Windows.old Folder
So, what is saved in Windows.old? In particular, you will find the old registry hives in C:Windows.oldSystem32config, & your personal protệp tin files in C:Windows.oldSystem32Users, which includes Cookies, Start Menu, UserData and more.
How to lớn Delete Windows.old Folder
Let’s start with a question put forwarded in tenforums.com:I"m in the Windows Insider program and have sầu updated Windows 10 several times now. Each time, creating a Windows.old folder. Do I need khổng lồ keep these, & if not, what"s the best way of deleting them? This is probably a silly question, but better safe than sorry. Thanks!
Windows.old usually takes 10 GB around disk space, depending on how large your previous Windows installation was. Hence, you may wonder: can I delete Windows.old thư mục to get spare disk space, & how can I delete Windows.old, just lượt thích the one wondering in tenforums.com.
The answers here are positive sầu. As long as you’re satisfied with your current Windows system và don’t want khổng lồ downgrade, and as long as you have saved all your important files from Windows.old, you can go ahead and remove sầu it.
Detailed steps are shown below, just keep reading.
1st Move: Show Windows.old Folder
Windows.old is regarded as a system tệp tin. In case you have mix khổng lồ hide protected operating system files, you need to lớn make Windows.old appear on your PC khổng lồ get your important files (if there is any) from it in advance. So the first move here is to lớn make sure that option is unchecked.
Take deleting Windows.old folder in Windows 10 for example.
Step 1. Go to lớn File Explorer, navigate to lớn View > Options > Change thư mục and search options to lớn get Folder Options window.
Step 2. Then navigate lớn View tab. Under “Hidden files & folders”, be sure to lớn select “Show hidden files, folders and drives” & uncheck the “Hide protected operating system files (Recommended)”.
Step 3. Immediately after you uncheck the “Hide protected operating system files (Recommended)”, you will receive a warning message saying that these files are required khổng lồ start và run Windows, deleting or editing them can make your computer inoperable. Just clichồng Yes to confirm the display of these files.
Tip: After deleting Windows.old, you can revert to lớn the previous settings to lớn hide the system protected files.
Step 4. Finally, press OK on the Folder Options window khổng lồ save your change.
2nd Move: Save Important Files from Windows.old
Before you delete Windows.old thư mục, you’d better take the chance to lớn save sầu important files from Windows.old if there are.
Step 1. Please go lớn C:Windows.old to find the folder named with your username.
Then open it & copy the files you need including documents, music, pictures, etc. lớn another location. If you want to lớn import your Windows Live sầu Mail messages from the Windows.old folder, you can cliông chồng here to know the detailed steps.
Now it’s time for you lớn delete Windows.old files.
3rd Move: Delete Windows.old Files
Please note that deleting Windows.old is different from deleting a normal thư mục. You can"t delete Windows.old folder by simply right clicking that thư mục và choose Delete. If you vị like this, you will need permission from system to delete Windows.old. See the following picture:
So, you should refer khổng lồ either of the two ways below lớn delete Windows.old files.
Way 1: Use Disk Cleanup
Step 1: Cliông xã in Windows" tìm kiếm field, type “Cleanup”, then click Disk Cleanup size the best match.
Step 2. You will come across a window allowing you to lớn select a drive sầu khổng lồ clean up. Since Windows.old is saved to lớn C: và C: is selected here by mặc định, you just cliông chồng OK to continue. Disk Clean-up will take some time to calculate how much space is able to lớn be released. Please wait patiently.
Step 3. Cliông chồng the "Clean up system files" button. Again, choose the C drive lớn.
Step 4. Wait a bit while Windows scans for files, then scroll down the menu until you see "Previous Windows installation(s)." Chechồng the box next to lớn the entry, then make sure there are no other boxes checked (unless you bởi vì indeed want lớn delete those items). Cliông chồng OK lớn start the cleanup.
By doing these, Windows.old should have been deleted.
Way 2: Use CMD
However, some users report that Disk Cleanup does not delete Windows.old. Here is a true example we extract from forums.lenovo.com:I just bought a Lenovo Y50-70 notebook, and it came with windows 10 preinstalled. Fiddling around, I found a Windows.old folder in the C: drive, so I figured the cửa hàng already did the upgrade for me. I tried using disk clean up lớn remove sầu Windows.old thư mục, but after it"s done, the folder still doesn"t go, occupying around 1GB of my storage. Why can"t I delete Windows.old? Any help would be appreciated.
At this time, we strongly recommkết thúc using CMD. How khổng lồ delete Windows.old using CMD? Want lớn know the best part? Please follow the guide below:
Step 2. In the comm& prompt window, type “RD /S /Q %SystemDrive%windows.old” and hit Enter. Then Windows.old thư mục will be deleted in Windows 10 without any obstacles.
“Wow! Windows.old can be easily deleted by using these two solutions. You also want to lớn release more disk space from C drive sầu by deleting Windows.old? Why not have sầu a try!”Cliông xã to tweet
More Windows 10 Tips: Hard Drive sầu Is Full without Reason in Windows 10/8/7? Solutions Are Here.
Downgrading Windows 10 khổng lồ the Previous Version
If you are not certain whether you want to downgrade after 30 days, we suggest that you make a backup of the current Windows 10 before you delete Windows.old. Then use the Windows 10 copy lớn downgrade lớn the previous Windows 7/8 or Windows 10. In this way, if someday you want khổng lồ go baông chồng lớn the previous version, you can avoid the reinstallation.
Users who back up Windows operating system do these two things well: first of all, they prepare another hard drive; secondly, they tải về MiniTool Partition Wizard Free which is compatible with Windows 7/8.1/10 all editions.
MiniTool Partition Wizard Free is professional disk management software that has helped numerous of Windows users giảm giá with their hard drive issues. For example, it helps to address low disk space warning, it is able lớn resolve New Simple Volume greyed out issue, & plays an important role in SD card formatting. The useful features are too many, và we are not going to cover all of them here.
To baông chồng up Windows 10, please follow the steps below.
Step 1. After installing MiniTool Partition Wizard on computer, cliông xã Migrate OS lớn SSD/HD from the tool bar.
Step 2. MiniTool Partition Wizard will ask you how you would lượt thích to lớn migrate your OS. Since we recommend backing up system, choose option B khổng lồ copy the system required partitions only. Then cliông chồng Next lớn continue.
Step 3. Select a destination disk lớn hold Windows 10. chú ý that the destination disk should be basic disk & it will be cleaned for a successful system migration. Taking that into tài khoản, you had better transfer the important files on the destination disk to lớn another location before you continue this work. When the destination disk is ready for system migration, hit Next to lớn go on.
Step 4. On this page, you can pĐánh Giá what is going lớn happen khổng lồ your destination disk. Also, you can make some changes to lớn the target disk. Clichồng Next button.“Fit partitions to entire disk” is selected by mặc định, but you can also choose “Copy partitions without resize”.Please keep “Align partitions to 1MB” checked if your target disk is an SSD or advanced format disk.It is worth mentioning that “Use GUID Partition Table” is a paid feature, but you don’t need lớn pay for this since you are only doing a backup. What’s more, you can resize each partition by dragging the sliding bar.
Step 5. On this page, MiniTool Partition Wizard tells you how to lớn boot from the destination disk. Since you will use this backup copy, you should read it carefully before you cliông chồng Finish.
Step 6. Now you are baông xã to lớn the main interface where you can pReview the target disk from the disk map. If you agree on this change, cliông xã Apply button on the tool bar to lớn start system migration. Your computer will be restarted in order lớn finish this job.
Tip: MiniTool will keep Windows 10 on the original hard drive. Through Migrate OS khổng lồ SSD/HD feature, you get two copies of Windows 10.
“Still hesitating whether you want khổng lồ go back lớn the previous version of Windows? Why not use MiniTool Partition Wizard lớn make a system backup & then roll it back!” Click to lớn tweet
Now it is time to boot your computer from this backup copy and then roll baông xã Windows 10 to the previous version.
To roll baông chồng using the native Windows 10 recovery tool, go khổng lồ Settings -> Update và Security -> Recovery. Cliông xã the “Get started” button under “Go bachồng lớn Windows 7” or “Go back to lớn Windows 8.1” depending on your previous OS.
The rollbaông xã option via Windows.old is available for at most 30 days. If you no longer see the option shown above, you either have sầu passed the valid-date OR you installed a newer version of Windows 10, in which case the respective sầu choice will be “Go baông chồng khổng lồ an earlier build”.
Be aware that the Windows.old backup only allows downgrading to the last version of Windows. If you upgraded Windows 10 from Windows 7, then installed another update of Windows 10, you are only allowed to downgrade khổng lồ the first edition of Windows 10 instead of going back lớn Windows 7.
When you have sầu downgraded Windows 10 khổng lồ the previous version, shout down your PC and phối your computer to lớn boot from the original system disk. By doing these, you can continue using the lakiểm tra Windows operating system and have the chance lớn use the previous version as well. Now you can delete Windows.old without worries.
More Windows 10 Tips:
Here comes to lớn the over of this post. In this article, we introduce what is Windows.old folder, & how to delete Windows.old files. In addition, we also tell how to lớn use Windows.old to lớn roll baông xã lớn the previous version of Windows. But if you are satisfied with the new updated system, you can go ahead and just delete it.
And rethành viên, Windows will automatically remove sầu the Windows.old folder a month after you tăng cấp, anyway.
Now, it is your turn. If this post is proved khổng lồ be useful, tóm tắt with friends. If you have any questions or suggestions on this subject, let us know by typing your questions in the phản hồi section. Or you can liên hệ us via
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Rodin is an enthusiastic IT writer focusing on Windows trends, disk partition management & data recovery. She loves to lớn write & nói qua her idea about the useful tips & tricks on personal computers" maintenance.
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