Burn a disc and use your key (on your pc).
You might be missing some necessary files which are located in the system32 directory. If Windows wont Load, try pushing F8 after starting it and run a Restore or Recovery
Mine has suddenly started doing this too. A required Microsoft Windows system directory, the Windows System32 directory is often located in either C:\Windows\System32 or C:\Winnt\system32. Often many Microsoft Windows error messages will contain the system32 directory because many of the system files Windows uses to run are stored in this directory. By itself the System32 directory will not cause any errors unless it is missing of course. If you are getting an error with a file in the System32 directory search for that file. No error message, it just pops up and has to be 'closed'
windows xp automated system recovery (ASR) Note: You can use recovrey console as well as windows repaire. if any file missing.
Use windows update, it will automatically locate missing drivers (sometimes it does not work).
if you have original windows 7 disc, you can reinstall it if you have recovery windows 7 disc, you can fix it
Put your windows disk in the CD drive and the system should boot from the CD drive. Or from the dos command line enter the following command say your CD drive is "d" and your hard drive is "c". expand d:\i386\command.nt_ c:\windows\system32\command.ntfor windows xp or ntexpand d:\i386\command.co_ c:\windows\system32\command.com for rest of windows ver.
In my case Autoexec.nt was missing from the C:\WINNT\System32 directory. Looking in the C:\WINNT\Repair directory I found that Windows had automatically made a backup copy of Autoexec.nt, so I just copied this into C:\WINNT\System32 and the problem was fixed.
I think you mean C:/WINDOWS/System32/mtsalvp.dll The directory C:/WINDOWS contains the operating system files, and System32 is an especially dangerous folder to mess with. If this file is missing or damaged, you can fix it by using your original Windows install disks. They would have come with your computer. If this isn't your problem, add some more information below my answer and I'll try to help more.
You need to repair or reinstall the operating system. Also it depends on file which is missing. Some are files are not important as others. Missing system files might indicate that you have a virus/trojan/malware on your computer.
It's VERY hard. Only way is software.
On XP / Vista, this is likely an issue with the winlogon key in the registry being either missing or corrupt. This is the result of a virus, or more commonly, virus software automatically removing a virus. If you can boot to a recovery console or off your original install disk, edit the registry to add/repair these keys: [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] "Shell"="Explorer.exe" [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] "Userinit"="C:\\Windows\\system32\\userinit.exe," This will solve your immediate issue and allow you to log on, but you still want to do a full virus scan.
go to www.dll-files.com and you can download your missing file after searching for it on the web site then from where ever you saved it to copy then paste the file under WINDOWS>system32 directory in your hard drive (go to my computer and click on local disc) then run the program and then it should work perfect