Steam won't open

[Djsint2]

When I launch steam, it doesn't open. I opened task manager and I saw that "steam client Bootstrapper (32 bit)" starts running when I start steam.exe but it closes almost immediately. I run win10 and I never had this problem before. There are no crash reports. Opening steam.exe with administrator rights doesn't work.

[Vanilla]

Try running steam.exe under compatibility mode. If that doesn't work, delete clientregistry.blob from the C:\ ... \Steam directory.

[Djsint2]

Originally posted by FlyingSixtySix:

Try running steam.exe under compatibility mode. If that doesn't work, delete clientregistry.blob from the C:\ ... \Steam directory.

It doesn't work...

[VladSparr95]

I experienced a similar problem today (and still am). I turn on my (Windows 10) Computer, attempt to open Steam, and it gives me the "Updating Steam" Window, then it says "Connecting Steam Account *my account*". Then it tells me "Could not connect to Steam Network" and gives me two options: "Retry" or "Start in Offline Mode". When I choose "Retry" nothing happens, and if I try to open Steam after that, nothing happens. I have no solution. I reinstalled Steam, shut down my Virus Protection (Vipre Security), restarted my router, computer, everything. Nothing.

[VladSparr95]

Well, now that I am logged in to this website here, Steam is constantly telling me that it is "Connecting Steam Account *my account*" but the Window is just sitting here on my screen, not making ANY progress to actually connect my account. Steam has never, ever given me trouble before today. It could have been the BIOS update Windows 10 received yesterday that has some kind of issue with Steam. That is the only thing that could have screwed with Steam.

[Nate]

I'm having the same issue now, if you have fix this could you please reply an say how you fixed it. Thanks

[Piggyboycult]

i am having the same problem on mac

[The Giving One]

Originally posted by pig_assassin75:

i am having the same problem on mac

There is another forum for Mac users. Good luck to you.

http://steamcommunity.com/discussions/forum/2/

[Djsint2]

Originally posted by randlesman:

I'm having the same issue now, if you have fix this could you please reply an say how you fixed it. Thanks

I deleted steam from my computer. Then I had to delete several files manualy, wich were somehow still being used by a steam progress on my pc, so I had to use a program called 'unlocker' to delete them. restarted the computer, then reinstalled steam.

[Atlantian]

I had this problem (one windows 7), I just closed the 'steam.exe' process that I found in task manager, then re-tried Steam and it opened fine.

[p70s6k]

Going to necro-post this a little bit but google returns this thread when you search "steam won't open" and this problem annoyed the ♥♥♥♥ out of me so hopefully it helps someone. It seems this happens quite a bit but is quite nuanced for different people regarding a solution, here's mine:

My steam would not open. It would do the log in but then just crash and terminate all processes related to Steam, ending with the closing of steamerrorreporter.exe. I tried a lot (an aggravating amount) of potential fixes and eventually found that Steam opened only when in compatibility mode (I'm on Windows 7). I system restored back about roughly a week and steam is working fine again. My best guess is that a windows update was somehow messing with Steam.

[johnshadows47]

I just kinda fixed my problem. But first, I tell you guys my observations. Yesterday, Steam Summer Sales ended, it was all working fine till then, I shut down my PC and I went to bed. By morning, before I went to work, I turned on my PC and tried opening Steam, it didn't. After a few tries, I went online to see if I could find a way to fix this.

I found a few tips, but, opening as administrator didn't work, running in compatibility mode didn't work, the blob fix didn't work, then I tried placing my steamapps folder in a safe place to uninstall Steam (I didn't want to re-download all my stuff again), didn't allow it because it was still running, closing all tasks in task manager didn't work, but while I was on task manager, I saw in the Details tab, 5 tasks running for Steam. One Steam.exe, two steamerrorreporter.exe, one SteamService.exe, and two SteamWebHelper.exe, and whenever I tried to open Steam, another Steam.exe would appear but vanished quickly.

Before I went to work, I saw someone named ForEverGreen, posted a tip on how it could be possible to uninstall Steam on Safe Mode.

Link:http://forums.steampowered.com/forums/showthread.php?t=3080758

When I came back to work, I searched how to get into Safe Mode on Windows 8, And I did. But before uninstalling Steam, I tried running it once more on Safe Mode, and it started to update (offline though). I opened it in offline mode, then I restarted my PC so it goes back to normal mode. I clicked the Steam icon again, and it started updating like normal. I didn't have to Uninstall, rewrite names or delete files, just ran Steam on Safe Mode.

If someone can confirm if this info is good, then I'm glad to be of help, if not, then sorry, it worked for me. I'd also like to thanks ForEverGreen for the tip.

[Кашка кукурузная]

FFGRGRGR

[Nargie]

Just thought I'd add my 2 cents in on how I got mine to work. Issue I was experiencing was Steam would verify installation then attempt to connect my account and then close all instances of Steam except for Steamerrorreporter.exe . I'm using Windows 7 and had to go into Windows Safe Mode and open up Steam in Offline Mode. Went to Settings, then Account and changed the Opt In on Steam Beta to NONE. Save and then boot back into Windows normally, opened up Steam and it dowlnoaded the latest stable update for Steam and I got back in fine.

[killercarwash]

Has anyone found a solution yet ?

[Bombardo Dunski]

validate your client files, then do all the above