If your win8 system has a Windows. old folder, it means that you have upgraded it based on the previous system. This folder usually occupies a large storage space.
If you are sure it is useless, consider deleting it. Here we will introduce a deletion method. Use cleanmgr.exe from win8.
Step 1: find it. Open the desktop panel, right click, click the AllApps button in the lower right corner, use Windows + Q to open the search button, and enter cleanmgr to find the program.
1279x796 (@ 79%) "alt =" "src =" http://www.eightforums.com/attachments/f1/f11/3953d1331020170-windows-old-folder-delete-windows-8-step2.jpg "width =" 813 "height =" 507 ">
Step 2: select the disk where windows. old is located.
Views: 88508
Size: 18.7 KB "border =" 0 "alt =" Name: Step3.jpg
Views: 88508
Size: 18.7 KB "src =" http://www.eightforums.com/attachments/f1/f11/1893d1316422174-windows-old-folder-delete-windows-8-step3.jpg ">
Step 3: click "Clean Up System files ".
Views: 88808
Size: 81.0 KB "border =" 0 "alt =" Name: Step4.jpg
Views: 88808
Size: 81.0 KB "src =" http://www.eightforums.com/attachments/f1/f11/1894d1316422174-windows-old-folder-delete-windows-8-step4.jpg ">
Step 4: Repeat steps 2nd and 3.
Step 5: This time you will see the Provious Windows Installation (s) option. Select this option and click OK.
Views: 88859
Size: 76.0 KB "border =" 0 "alt =" Name: Step5.jpg
Views: 88859
Size: 76.0 KB "src =" http://www.eightforums.com/attachments/f1/f11/1895d1316422174-windows-old-folder-delete-windows-8-step5.jpg ">
All right, these Windows. Old folders will be deleted.
There are other methods. Check this link. I also read this.
Http://www.eightforums.com/tutorials/2527-windows-old-folder-delete-windows-8-a.html