When I'm synchronizing files from my computer to an USB drive, I get the "do you want the following program to make changes to this computer" warning when encountering some of the files. These are just ordinary data files that I've had no problems copying under XP. I'm using Directory Opus. Looking at the details, it seems to have to do with CLSIDs. I'm puzzled why this happens? I'm not making changes to the computer, since it's a one-way copy to the USB disk.

I'm pretty sure that the FAT (or FAT32) filesystem doesn't have all the permissions capabilities that NTFS does. But that'd give you an error that the security options couldn't be copied over correctly. Is there anyway you could post a screenshot?

Hi. Thanks for your reply! All my USB disks are NTFS. Here's a pic: http://yfrog.com/5ppicazj I've tried running DOpus as Administrator.

Was reading the forums and came accross a similar problem. Are you using an nVidia chipset? http://www.microsoft.com/downloads/details.aspx?familyid=070A27E4-17F9-4E61-AD34-25278B325E28&displaylang=en

No, this is a Gigabyte GA-MA770T-UD3P with the AMD 770 chipset. I've noticed another interesting thing while copying files; sometimes the copying pauses 10-15 seconds, before getting on with the next file. Happens sporadically. Seems I found the answer. For some reason, folders on my USB disks have become read-only. I can only assume that's something Win 7 has had something to do with, because it's happened to all disks I've connected. And I have never messed with that. I imagine XP would have reacted too, if they had been read-only when I was using them there. I'm surprised Win 7 couldn't say right out why elevated provileges were needed. I am sorry it didn't come to me to look for such a thing before. But as they weren't read-only on XP, it didn't occur to me. Thanks for your efforts!

Seems I have to do some more digging. Even after removing the read-only attribute recursively, the problem persists on some folders/files. I'll do some more digging and report back here. Thanks for your patience.

Hi, I would like to confirm the following questions first: 1. What the detailed messages you receive when copying files? 2. Does this issue occur if Directory Opus is not in use? 3. Does this issue only occur when copying from USB drive or also occur when copying from internal drive? 4. Does this issue only occur on some special file types or also occur on all the file types? Based on the current situation, I would like to suggest you disable User Account Controller (UAC) to test the issue. If it does not work, please also test the issue in Safe Mode. What is the results? If the issue persists, would you please paste the error messages you encounter here for our further research? For more information, please Use SkyDrive to upload collected files and post screen shot/picture. Regards, Arthur Li TechNet Subscriber Support in forum If you have any feedback on our support, please contact tngfb@microsoft.com. Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

Based on what i can undersatnd you can try modify the Local Security Policy by opening a run box and typying "secpol.msc" then go to LOCAL POLICIES then SECURITY OPTIONS then change the "User Account Control: Behavior of the elevation prompt for administrators in Admin Approval Mode" option to disable. See if that helps if not is it prompting for consent or credentials?

Most likely, this is due to UAC. UAC will prompt you for every fileaction on files on which "administrators" has privileges, but you do not. You can disable UAC to work around it, but I would recommend changing the NTFS file permissions on all your files to include your own account name and the needed privileges.MCP/MCSA/MCTS/MCITP

I'm sorry for the delay on answering! To Arthur Li: 1. See http://yfrog.com/5ppicazj 2. Yes 3. Only to USB, not from. 4. All filetypes. But only random ones. OK, I have disabled UAC, but it requires a reboot, so I will do it on patch Tuesday. I'll do whatever it takes to resolve the issue. To Taylor Gibb: OK, will try that and get back to you. Thank you all for your patience.

Thank you, I will try that too.

OK, I turned off UAC, and the warnings went away, as expected. I do of course understand changing the NTFS file permissions is a better solution. The one thing I don't understand, is why I could use the USB disks on other XP machines, and copying/deleting could be done without any complaints. On Win 7 I have to mess with file permissions. Why is that? Does anyone know? Thank you.