Depending on where this csrss.exe (Client/Server Runtime Subsystem) is trying to load from will determine if it’s supposed to be running or not. If its loading from C:\Windows\System32 then its most likely supposed to be starting but if its loading from somewhere else then it can be a spyware or virus application trying to load with your computer.
One way to check this is to MSconfig and see if its listed there and then look in the Command and Location columns and see if you can tell the path to where its trying to run from. You can uncheck it so it doesn't start up with your computer next time but many times it will find its way back to your startup again.
Then I would do some spyware and virus scans in Safe Mode and see if you can clean it from your system.
The first thing I would try is a Flash Player update. You can go to the Adobe website and download/install it for free.
If it says you have the most current version then you can try to uninstall Flash Player using the Flash Player Removal Tool and then reinstall it from the website. You may actually want to try to uninstall it first even before trying to see if you have the most current version.
Also make sure you have an adequate internet connection to play streaming videos. If you are on a dial up or very slow broadband connection then that may be the cause. You can use a site such as Speedtest.net to run a test. But with today's fast connections that shouldn't really be a problem unless you are using a cellular hotspot.
Another option is to check and see if its a web browser issue. If you are using Internet Explorer for example then try out Firefox and see if that fixes it. You can have both IE and Firefox installed at the same time.You might want to run the Flash Player update again after installing Firefox.
You may want to try to re-register a certain dll file to get this to work again. Click on Start, Run and type regsvr32 /i shell32.dll and click ok.
Another process is to delete the autorun.inf file on each drive. Make sure that Windows Explorer is set to show all hidden and protected files. Next find and delete the file named Autorun.inf in the drive's root. Then logoff the computer and log back in. You may need to make a blank autorun.inf and put it in the root of each drive if that doesn't work. To do this you can open Notepad, leave it blank and do a Save As and name it autorun.inf.
It sounds as though your computer is overheating and then shutting itself off to prevent damage. Many motherboards have that feature built in where it will monitor the temperature and then turn itself off when it gets to a certain level. Since your computer is going up to 93 degrees Fahrenheit it sounds like this is what is happening. You can check the BIOS to see what the shut off temperature is set at to verify that this is why it is shutting down.
The reason for it getting too hot is most likely a bad fan somewhere. If the processor fan is not working or not spinning fast enough then that will cause the processor to overheat really quickly. Some motherboards also have a setting to tell you the speed/RPM of the processor fan so you will know how fast it is spinning. I would open the case and then turn on the computer and check the processor and case fans to see if any are out. Also if you have a buildup of dust inside then that can cause things to get warm as well.
Those online computer cleanup services basically just have you install their software and it will scan your computer and tell you that you have issues that need to be cleaned. Then they most likely will want you to buy the software in order to fix your problems. They are using software similar to the free Ccleaner software and anti spyware software such as Malwarebytes and Spybot.
I wouldn't waste your time with these services and just install the free software that is out that that does basically the same thing. Plus you can run some other cleanup procedures as well to get the same results.
If you are referring to your BIOS password that shows up before you even get to Windows then the only real thing you can try is to take out the CMOS battery from the motherboard for a half hour or so and put it back in and see if it resets the password to blank or the default. If that doesn't work and if you are lucky your motherboard will have a clear password jumper on it.
Just set the jumper so it's on clear password and power on the computer and it should clear your saved password.
If you can find out who makes your BIOS you may be able to find a reset utility that they provide on their website or by contacting them.
It sounds as though you may have a bad video driver. The screen you are seeing is called the Blue Screen of Death (not technically of course) but usually happens when you have faulty hardware or a bad driver. These errors are commonly called Stop Errors because it halts Windows and doesn't let you get any farther without a reboot.
Many times you won't even be able to recover from these and will need to research the error details to see what the problem is. Since yours happens when you watch videos I would first try to update your video card driver. If you don't know the make and model of your video card then you can go into Device Manager to find it. Then you can do a search on the manufacturer's website for your model of video card and download the one for your version of Windows.
Another test you can do is try your videos in a different web browser such as Firefox or Chrome to make sure it's not software related. You can use multiple browsers on your computer without having to choose only one. If none of those options work then you will have to write down the error code and do a little research.
It sounds like you have a corrupt winmm.dll system file. I would first try the Windows System File Checker to see if it can find and replace the corrupt file. You most likely will need to have your Windows CD handy in case it asks for it so hopefully you have a copy.
Another option is to replace the winmm.dll file from another computer or find a copy of it online. Just make sure it's from the same version of Windows if you take it from another computer just in case it varies between versions which it may not. Then you can copy the file to the System32 directory and reboot your computer. You may want to backup the old copy or rename it winmm.old just in case you need to revert back to it. Do this before copying the new file to your computer. If it doesn't help after the reboot then try to re-register the phone by clicking on Start and then Run. Then type cmd and press Enter. Finally in the command box type regsvr32 winmm.dll and press Enter.
Try booting into Safe Mode and choose Last Known Good Configuration. This will start your computer using the configuration that worked successfully last time you started your computer.
Or you can see if you can actually log into Windows from Safe Mode. If so then you can try a System Restore to put your computer back to a state before you started having this problem.
You can also edit your startup items using MSconfig to make sure that there is nothing set to boot with your computer that shouldn't be. This could be causing your system to hang.