I'm running Avira virus checker. It's taking hours. The problem seems to be windows\temp files. I'm unable to delete these files because they "need permission from TrustedInstaller"   Is it safe to delete all these temp files? How to get around permissions?
120477
When deleting certain files from the Program Files directory using the Administrator account, I got the following pop-up:     How should I work around this? Why am I asked to require permission from "TrustedInstaller", despite using an Administrator's account?
103019
I have a folder on my PC in which I keep my temporary files, which I won't be needing after some time. I manually delete them from time to time. What is a way to automate this? I can think of deleting files whose last access time is greater than 20 minutes using Java, but then again, I would have to run it myself which still wouldn't be automation. I using using Windows and file system is NTFS.
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Does the Virtual PC XP-Mode (or any other virtualized mode) require safety measures, such as antivirus or a firewall?  I'm just wondering if the XP-Mode would be a large security loophole, since it's so much more integrated into Windows 7. Actually I'm wondering the same for Portable Ubuntu, are their any safety measures I should undertake, so that I don't open a backdoor on my computer.
124044
I had to take ownership of the special folder C:\Program Files\WindowsApps to fix . The issue is now resolved, so I'd like to reset the permissions to the way they were before I took ownership of the folder.  I reverted NT SERVICE\TrustedInstaller to the owner and removed my account's permission entries:     But I still have full control of the folder and can browse the folder in Explorer without getting the usual warning that I would have to take ownership:     Is it possible to restore the default permissions of this folder?
78940
I am on Windows 7.  I have some files on my computer leftover from an old version of Photoshop.  (I think... I don't remember exactly where they came from, but they seem to be Adobe files.)  There are 124 of them in a folder, which I have named "KILL."  (I don't remember what the original name of this folder is, it's been on my comptuer a long time.)  These files seem to be absolutely undeletable, as far as I can tell.  I can move them around and change the name of the folder, but deleting them is out of the question.  I also can't move them onto a different hard drive or flash drive, I've tried that.  So, let me list the things I've tried first:   A whole bunch of different "unlocking programs."  Including: IObit Unlocker, Lock Hunter, FileAssassin, and Project Kill box.  What I use LockHunter I am told: "No processes locking this file or folder have been found."  All of the other programs I've tried give me similar messages, telling me that nothing is locking the files.  Yet when I try to delete the files using LockHunter, I am simply told "Cannot delete x."  No reason is given. Tried using cmd.exe.  Even when I run a command window under administrator, it won't even let me access the KILL folder, much less delete anything.  I also tried killing explorer.exe from the task manager, and then using the cmd window.  Still can't even access that folder. Tried using safe mode in combination with these other options, doesn't change a thing. Tried changing permissions of the files using the security tab under properties.  It simply says "not inherited."  It will not allow me to change a thing. I am definitely the administrator of this computer. Tried Disk Cleanup and Defrag.  I suspected that some files must be damaged or something, but Disk Cleanup wasn't able to find any errors.  Defrag didn't help.   So, let me just say that I am not a computer expert.  But based on all the things I've tried, I suspect that this might be some hardware problem?  It seems strange that these files don't seem to be used by any processes, and yet are absolutely undeletable no matter what I do.  Is there anything else I can try?  Has anyone had any similar experience, and have any idea why this might have happened?  EDIT: Interesting recent development.  As I have toyed with moving the folder around, I moved it to the Program Files folder.  Now that it's there, it suddenly CANNOT be moved nor renamed.  It is stuck there, apparently permanently, as a folder called "KILL."  How irritating.
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Seems simple, right? Well it's not listed as a program, and no updates. So uninstalling from control panel is out of the question. And deleting them manually give a "You need to be TrustedInstaller" message. So Of course I Googled it, and I tried to follow the steps to give my user account full-access to the files of Internet Explorer but it won't let me edit it from properties. So my theory here is that by figuring out how to get into some ultra-super-secret-high-security portion of windows I can change the settings and hopefully leave with minor damage to my operating system.  So can one of you please show me how to uninstall this. Keep in mind that I'm not just some idiot with a laptop, uninstalling programs is a piece of cake. But I think the problem is IE was installed when I got the computer which means it's one tough cookie to get off.  It's a windows 7, Internet Explorer does not tell me it's version, but by comparing pictures of internet explorer's I can conclude that it's ie9 or later.
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What's the best way to get a temp directory name in Windows?  I see that I can use GetTempPath and GetTempFileName to create a temporary file, but is there any equivalent to the Linux / BSD  function for creating a temporary directory?
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A friend's computer was recently infected with a virus.  I hope the virus has been removed successfully. But, it appears that the virus set the "Hidden" flag on most directories and files on the system.   What's the most convenient way to clear this flag from selected directories and their contents?
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Has anyone successfully deleted the Windows Installer files successfully before? They are taking up 35.1% of my total hard drive space.  Which ones are needed and which ones can be purged?  In order to see this folder, I had to unhide system files by going to Windows Explorer > Organize (dropdown) > Folder and Search Options > view tab > uncheck ==> Hide protected operating system files (Recommended).  I used WinDirStat program to get these percentages. To see the image in full size, open it in a new tab.  I was told by someone that you should not delete these files, but then I found a utility--Windows Installer CleanUp Utility (very old version) that deleted these.  But it doesn't run on Windows 7.  If anyone has a later version that they found works, please let me know the path.
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I downloaded a file from the internet (I can link to it here, but in the interests of not annoying other users, I won't post the link), and I can't delete the file with the message:   You need permission to perform this action  You require permission from the computer's administrator to make changes to this file   Trouble is, I am the administrator and UAC is completely off.  If I go into the Properties/Security tab, I get the message   You do not have permission to view or edit this object's permission settings   Clicking "Advanced"/Owner, it says:   Current owner: Unable to display current owner.   If i try to change the owner, I get the same message:   Unable to set new owner on file  Access is denied.
13047
I can't find those that I need to delete. What's the location of those files?  How can we manage them?
14164
Yesterday I installed a new Antivirus as my old licence was not valid anymore. I chose the free . Now the pc is extrem slow. It takes about 8 min to start (before with  it took 2 min). Is there something I can do?
55986
When I boot up my PC, I get these windows security alert message telling me to allow the programs and I have configured to open on startup through the firewall, then if I open an application E.G Steam, it gives me the same message, so I press allow, but the next time I boot the application or PC, they show up again, I've done a virus scan with Malwarebytes to no avail. I am using windows 10    Thanks in advance
47066
How can I find out which process is locking a file or folder in Windows?  For instance, when trying to delete a folder, Windows reports this:     The action can't be completed because the folder is open in another program   Happens the same with a file, but how do I find out what program or application is currently using it and preventing me from deleting the file or folder?
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On Windows XP, when I try and delete a specific file it says:     Cannot delete blah.blah: Make sure the   disk is not full or write-protected   and that the file is not currently in   use.   How can I go around this warning and delete it anyway?
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I'm trying to find a way to automatically clean/delete the temporary files from C:\Documents and Settings\user\Local Settings\Temp\ at shutdown/boot on my Windows XP Professional x64 SP2 machine.  The main reason for this is to clean Local Settings/Temp to remove old junk automatically. (I had thought I had this covered through Firefox settings, but I was only clearing temporary Internet files). Currently, there's around 3&nbsp;GB of temporary files, and I'd like to prevent this build up without having to remember to do anything on my part.  I have already looked at using  (explained in Super User question ), but it doesn't seem to touch that directory.  I'm aware of programs such as , but I would ideally like to use a solution that doesn't require additional software (so, I expect, something using a scheduled BAT/CMD script would be what I'm looking for).  One of the potential issues, I believe, is that there may be legitimate files in the Temp folder that may be needed on the next boot (for software installations or updates, for example) and the perfect solution would be able to distinguish those and leave them until they weren't needed (Note: I realise this perfect solution may not be reasonably possible).  I've already set up Disk Cleaner on a shutdown script, but when cleaning temporary files, Disk Cleaner doesn't clean this particular directory, and so I'm looking for alternative options (see Super User question  for a little more detail).  So, what are my options for automatically deleting the temp files from C:\Documents and Settings\user\Local Settings\Temp?
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Does Ubuntu need an Antivirus?  If so, could you recommend a good one? I am interested on the Ubuntu side only.