How to hide a folder

When I was working in a computer company a few days ago, I found that a considerable number of customers could not open the hard drive Drive! Right-click and find that the first item is not open, but something like auto. Needless to say, it's a natural trick. Generally speaking, computer companies are used to installing systems. Is it simple? People who have been in computer companies for three or five days can do this. However, the problem cannot be solved after the technical trainees and customers of our company reinstalled the system (the omnipotent clone was completed in just a few minutes! I had to solve it manually!

Of course, the process and the hidden files and extensions should be taken into consideration when the trojan is killed. However, the virus has been moved here. In the folder option, "hide files and folders" hide do not show hidden files and folders. Hide show all files and folders. Select "show all files and folders, click "application" to confirm, and then click "re-open" to check that the application is automatically changed. Fortunately, I have seen super hidden and other things before. I also saved the Registry file that shows hidden files and folders!

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE/software/Microsoft/Windows/CurrentVersion/Explorer/advanced/folder/hidden/showall]
"Checkedvalue" = DWORD: 00000001

Open the registry and find the preceding registry key. It is found that the checkvalue is set to 0. If the normal computer is 1, change it to 1. Set the folder option again to display all folders and restore to normal. It is found that there are several hidden files under each partition. No wonder it is useless to reinstall the system, and even the anti-virus software of rising star cannot be installed! End related processes, delete all related files, and right-click to restore to normal! It turned out to be a virus file, and the system was set up so that users could not display hidden files and naturally could not see themselves! After being deleted, anti-virus software is installed. Everything is normal and there are no other problems! Although the problem is quite simple, a considerable number of customers have encountered the same repair problem in the past few days. I don't know if it's something new! Although it is the most basic thing for people engaged in computers, it is not a simple problem for ordinary users!

I studied it later. I have nothing to worry about recently. I think there is nothing to write a blog, and I am posting it here for beginners to query it. Don't laugh!

1 In the registry [HKEY_LOCAL_MACHINE/software/Microsoft/Windows/CurrentVersion/Explorer/advanced/folder/hidden]
There are two items: nohidden and showall. Some people say there are three items (98), but my own computer only has these two items. Nohidden naturally does not show hidden files, and showall displays all files. Both items have checkedvalue and defaultvalue!
In the preceding example, the related registry key value [HKEY_LOCAL_MACHINE/software/Microsoft/Windows/CurrentVersion/Explorer/advanced/folder/hidden/showall] is changed.
"Checkedvalue ",
The system defaults to "checkedvalue" = DWORD: 00000001, "defaultvalue" = DWORD: 00000002. If you set checkedvalue to 0, all hidden files cannot be displayed! Normally, you can hide the folder and file attributes, but users with basic knowledge know how to change it to show hidden files and manually modify the registry, set checkdvalue in showall to 0 to prevent normal users from viewing it. This is no use for laruence!
2. All hidden files are displayed as default values of the folder option! As for the default value of defaultvalue, I did not find the meaning of each value at Microsoft, but it can be set to either 1 or 2 or 0. If you set "defaultvalue" of [HKEY_LOCAL_MACHINE/software/Microsoft/Windows/CurrentVersion/Explorer/advanced/folder/hidden/showall] to 1, it should make it the default value, you will find that both items are selected when the default value is restored in the view. If you want to set all hidden files to the default value, you can set the defaultvalue of nohidden to 1 and the defaultvalue of showall to 1! By default, all hidden files are displayed! You can change it to see the specific effect.
3. If you have encountered a similar problem, you can check if you have been passive! Hope to pass through the registry and leave detailed settings for each value!
4. What we can see on the Internet: What's more, using the Registry Editor, we can hide all three single-choice buttons under the "Hidden Files" item on the "View" tab. We only need to set the "text" string key in the "nohidden", "nohidorsys", and "showall" branches under "hidden" (note: in Windows XP, keys with different key values are cleared. In this way, exit the Registry Editor and go to the "View" tab. You will find that the "hidden files and folders" are empty. Anyone who wants to view our personal files is two words-no way, because there is no way to choose this place! (Delete "hidden" and "nohidden", and nothing will happen. Haha)

Attachment: Default Folder Options: (in the xp system, you can save the following text as a registry file and import it to the Registry to fix related problems)

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE/software/Microsoft/Windows/CurrentVersion/Explorer/advanced/folder/hidden]
& Quot; text & quot; = & quot; @ shell32.dll,-30499 & quot"
"Type" = "group"
"Bitmap" = hex (2): 25, 00, 53,00, 79,00, 00, 6d, 00, 6f, 00, 6f ,/
, 25, 00, 5C, 79, 00, 00, 6d, 00, 00, 5C, 00 ,/
48, 00, 45, 00, 4C, 00, 4C, 00, 00, 2e, 00, 6C, 00, 6C, 00, 2c, 00 ,/
00
"Helpid" = "shell. HLP #51131"

[HKEY_LOCAL_MACHINE/software/Microsoft/Windows/CurrentVersion/Explorer/advanced/folder/hidden/nohidden]
"Regpath" = "software // Microsoft // windows // CurrentVersion // explorer // advanced"
& Quot; text & quot; = & quot; @ shell32.dll,-30501 & quot"
"Type" = "radio"
"Checkedvalue" = DWORD: 00000002
"Valuename" = "hidden"
"Defaultvalue" = DWORD: 00000002
"Hkeyroot" = DWORD: 80000001
"Helpid" = "shell. HLP #51104"

[HKEY_LOCAL_MACHINE/software/Microsoft/Windows/CurrentVersion/Explorer/advanced/folder/hidden/showall]
"Regpath" = "software // Microsoft // windows // CurrentVersion // explorer // advanced"
& Quot; text & quot; = & quot; @ shell32.dll,-30500 & quot"
"Type" = "radio"
"Checkedvalue" = DWORD: 00000001
"Valuename" = "hidden"
"Defaultvalue" = DWORD: 00000002
"Hkeyroot" = DWORD: 80000001
"Helpid" = "shell. HLP #51105"