catalint Loc: oslo

Yes , i was just a little too late with my answer.

Regarding permissions on folders and files, an admin account can get access denied also. NTFS permissions can be a mess when windows fails. I guess you could just have reset folder permission to start with, not add the home group. But you have it working now, so I am not going to advise to correct it. If "it ain't broken , dont fix it"
:)

Bloke Loc: Waynesboro, Pennsylvania

I have had issues with permissions on windows for years. I am the only user, it's a personal machine, and my id is the administrator. Still, there are things it won't allow me to access, saying I don't have permissions, and should contact my system admin.

Microsoft needs to remember that these are *personal computers*. All this stuff to protect users of multi-access machines is screwing up the users of simple home-based machines.

catalint Loc: oslo

If you find hard to fix permission problems , you could get the little app i mentioned in my answer. This can easy help you gain Full Control on your folder. Basically it changes owner to administrator and sets everyone full control.

This has to be your choice. If you feel this stuff is difficult and have general knowledge of windows, then let someone else do it. This way you don't end up in an evil loop of problems. :)

lloydl2 Loc: Gilbert, AZ

I'm on Windows 7 and lightroom cc and export JPG and have had this problem occur a few odd times sometimes when exporting a series of photos one or more get a similiar message I go back and re export the ones that failed and it works. I've also had situations where a single or a few images get an error on import from camera card and then I go back and re import the failed ones and it works..

I also find LR CC very sluggish at times and I have a monster desktop sometimes if I go into preferences and toggle performance graphic card on if it was off and off if it was on performance improves sometimes I have to restart lightroom or even reboot.. An example of sluggish is sliders won't move and then jump if I am setting up a graduated filter and go to adjust the lines nothing happens and then several seconds or more later the entire filter jumps or swirls or something.

catalint Loc: oslo

For me it sounds like you have other challenges. What you describe, for me sound like too little ram and maybe a hard-drive which need de-fragmentation. You mentioned turning performance on and off. Is this a laptop? My experience with laptops is that unless you invest heavy, they will always perform poorly when dealing with media editing.

My theory is based on the fact you mentioned rebooting and it helps, sluggish, big desktop, etc. Exporting several pictures where some fail , this may indicated a large write que on your hard-drive.
If you have little memory all this = swapping to hard-drive and that means 10 times slower, and reboot often helps. Just for a little while.

lloydl2 Loc: Gilbert, AZ

I've got a fairly new, custom built windows 7 pro with intel core i7 4770k cpu @3.50 ghz 16 gb memory a 256gb ssd drive that houses my os and all software, the lr catalog etc. I have a 2tb built in hard drive and 2 external multi tb usb 3 connected drives that I use for backups. My images are stored and referenced from the internal non ssd hard drive. I also have a 2 video cards, a radeon r7 200 and the built in intel hd graphics 4600 on the motherboard. one monitor is hooked to each and LR only recognizes the internal hd graphics (before I had the 2nd monitor it recognized the radeon but still had the same type of performance issues. These problems are intermittment and I too suspect some kind of memory leak at the root of it. Any thoughts, ideas, things to check are welcome as it can be really annoying.

catalint Loc: oslo

hehe .. that put things in another perspective :).
This can be driver issue or ....first thing came into my mind is :

why do you connect each monitor to each card ? your Radeon card is more then perfect, and it has multiple outputs.

Second : I dont exactly understand what you mean your "LR only recongnizes the internal vga?". What about windows. Does your desktop extend on both screens ?
Can you have both monitors connected to Radeon card(and btw:in a lots of cases, disabling the internal vga card when adding better one works much better)?

This is where i am stuck :)

lloydl2 Loc: Gilbert, AZ

The radeon card only has 1 HDMI output

catalint Loc: oslo

i see . thought it was a newer model.
Not much i can say then. I would start cleaning out all drivers and reinstalling them. try updated one, but guessed you tried that.

Having in mind the internal vga shares memory, that could be your key problem. As a technical guy, shared memory vga cards have always performed badly in heavier loads in my opinion.

If memory leaking is a factor here, which in your case may be (https://forums.lenovo.com/t5/Windows-8-and-8-1-Knowledge-Base/Windows-8-1-Memory-leak-with-Intel-HD-Graphics-on-certain/ta-p/1590274) , then I would definitely invest into a new vga card with multiple outputs rather than trying to figure and fix this one. You will gain more from the computer setup you have :)

Sorry i cant be of much help here. But your problem history tells me this may be a nut to just solve by myself in writing. :(

PS: if you card has just one HDMI , but also a DVI , DP etc, you can buy a converter for that,

lloydl2 Loc: Gilbert, AZ

[quote=Second : I dont exactly understand what you mean your "LR only recongnizes the internal vga?". What about windows. Does your desktop extend on both screens ?
Can you have both monitors connected to Radeon card(and btw:in a lots of cases, disabling the internal vga card when adding better one works much better)? [/quote]

LR (lightroom), can only recognize 1 video card if you have more than 1 it will only use one it picked the internal versus the radeon r7 200. I have 2 samsung 27 in monitors the older one looks like it has hdmi and dvi i dual link, the other is hdmi only. I'm pretty sure the radeon has a dvi i dual link so I can pick up a cable and connect to one of the monitors via dvi i dual link... although similiar performance problems occured when I was using only 1 monitor with the radeon....

catalint Loc: oslo

Maybe i missed something along, but still don't understand what you mean with

"LR (lightroom), can only recognize 1 video card if you have more than 1 it will only use one it picked the internal versus the radeon r7 200"

I understand that when you use Lightroom you see nothing on the other screen. It's black.

Lightroom has nothing to do with recognizing monitor and vga. Your Windows is loading a driver for the graphic cards where all application take use. When you are logged on in Windows , do you have your desktop stretched on both screens ? Is yes , then your Lightroom should work on whichever monitor you start it on.

If your problem is that you cannot use both monitors at once, regardless program, then this is different problem.

Regardless of the scenario, it seems like you have a problem where you have to use tools such as Task Manager, Performance or get more advanced tools from Sysinternals.com and have a look at your Windows/Machine performance. Whatch your memory, see for leaks. Look for heavy loads of write to disk or memory. What does your CPU say?

This is my only advice I can give from my seat.

lloydl2 Loc: Gilbert, AZ

what i meant by LR can only recognize one video card, it is in terms of the edit performance option to use a video processor/memory to enhance performance. The OS recognizes both and I can use both monitors and can use 2 monitors with Lightroom using the 2 monitor view option.....Given 2 video cards to choose from for the performance option within ligtroom .. lightroom chose to use the internal intel video rather than the radeon or both again only in terms of the performance option new with cc 2015

joer Loc: Colorado/Illinois

Check your help files. As an administrator you can change the permissions on files.

I haven't done it for awhile, just changed operating systems and can't recall but it wasn't that hard.

Bloke Loc: Waynesboro, Pennsylvania

It tells me that I need permission from my administrator! I am the freaking administrator! I am the only id on the computer... You try to change the permissions, and it tells you that you don't have permission to do that...

Erik_H Loc: Denham Springs, Louisiana

You can run the icacls command from an elevated command prompt to set permissions to specific files and/or folders. You can see more information as well as syntax here.