Steam is running in windows compatability error, please help!

Dear Steam Users,

I started steam 2 days ago and an error popped up saying "running steam in windows compatibility mode is not recommended. Please remove any windows compatibility settings for steam.exe under all users. and restart steam. Press cancel to permanently ignore this warning and continue."

I then looked under all users but none had the windows compatibility mode checked. I done a system restore and it worked fine then. Last night I bought left 4 dead and this morning when I started up steam the same message came up. I looked under all users but windows compatibility was not checked for steam.exe. I do not know whether to click cancel or not could you please help me.

Regards,
Lightningx36

[Ramzy]

What operating system are you running?

Vista Home Premium SP1

[Ramzy]

Alright, so if you right click Steam.exe > Properties > Compatibility, it looks like this?:

http://i40.tinypic.com/mm4uaw.png

Are there multiple user accounts on your computer? And do you have UAC enabled?

Yes it looks like that only I have run as admin checked. There are multiple users. I don't know what UAC is.

[Ramzy]

Do the other accounts on your computer all access Steam? Or is it just you that uses it?

Just do this.

In that Steam.exe-»properties--»compability

Click on show settings for all users

And take off the compability mode

[crusader8463]

Originally Posted by Robinhu10

Just do this.

In that Steam.exe-»properties--»compability

Click on show settings for all users

And take off the compability mode

TY i have had been having the same error from steam for a week now. But that fixed it. IDK how it got checked though as i am the only user and account on this computer. Oh wells thanks.

[ZeroHour]

I had a similar problem. Try:
http://www.edugeek.net/forums/gaming...lity-mode.html

[>X<]

If nothing else fixs it try:
Hit start->run->regedit
Go to key: HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Layers
Look for a entry with your path to steam.exe
Delete that entry
If you dont find it there try HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Layers

start Steam

Thanks ZeroHour +rep

[Happy13ee]

Thanks ZeroHour at least I'm able to start steam again, but my mouse is a bit wonky still.

I also started having problems after buying Left 4 Dead 2 6-26-10. I played it just fine and after I quit my mouse wasn't smooth at all.

It's a bit hard to hit the X to close a browser tab. It's a bit better after removing the registry key, but I never had a problem with the mouse being precise. Before the FIX Zero mentioned my mouse was very hard to point it where I wanted it to go. I had to redrag it several times to finally get it to where I wanted it to go. Any idea what caused this?

Anyway thanks a lot for the steam fix ZeroHour. +rep

PS My mouse is a Logitech MX Revolution and running the latest drivers. Any info on the mouse would be appreciated.

Hey Happy13ee - I also installed left for dead 2, when it was on sale a few days ago. it played ok, but the next day at work I had some strange mouse lag, using the logitech software. After an hour or so that went away and my mouse has worked fine.

But...

That night steam started warning about compatibility mode, I checked the steam.exe compat properties and it was clean for all users.

But starting then and ever since while playing TF2 I have occasional video lag, the whole thing freezes up for 5-10 seconds then runs smooth again.

Same thing happens in Galcon Fusion.

Tried installing new nvidia drivers, virus scan, video benchmark, and ran a memtest. All clean so far.

Just removed that reg key, will see if it helps.

Edit: Nope, that wasn't it... must be an overheating issue.

[Cronus]

Originally Posted by >X<

If nothing else fixs it try:
Hit start->run->regedit
Go to key: HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Layers
Look for a entry with your path to steam.exe
Delete that entry
If you dont find it there try HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Layers

start Steam

Thanks ZeroHour +rep

This thread was the second google result and the above fixed it for me. Thanks.

Originally Posted by Cronus

This thread was the second google result and the above fixed it for me. Thanks.

Same here! Good call on that fix. Out of curiosity, does anyone know what causes this error in the first place?

[Jeearr]

Originally Posted by >X<

If nothing else fixs it try:
Hit start->run->regedit
Go to key: HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Layers
Look for a entry with your path to steam.exe
Delete that entry
If you dont find it there try HKEY_LOCAL_MACHINE\Software\Microsoft\Windows NT\CurrentVersion\AppCompatFlags\Layers

start Steam

Thanks ZeroHour +rep

Worked for me; try looking under HKEY_LOCAL_MACHINE as well for it (I found it under local machine, deleted it, and it worked). Thanks guys.