Windows NT 4.0 is very sensitive in case you use low quality components hardware. For example it detects slightly memory problems and it wont work, even same memory normally works on Windows 95 or 98 systems. If you have two FDD's (5,25" and 3,5") swapped in BIOS, it will not work. After copying setup files and restarting of system, NT will crash when loading kernel with blue screen of death. Solution is to connect floppy drives standard without enabled "swap FDD drives" option in "advanced bios setup" section of BIOS setup.
If Windows NT server became very slow, printing became unbelievable time consuming, and that happens when administrator is far away from server and when administrator just move mouse or touch keyboard problem disappears, do not worry - just turn off screen saver ! Open GL screen savers (pipes, labyrinth, 3D marquee... ) can occupy a lot of CPU resources, specially on computers without Open GL graphic card.
This advice can be used on other computers (working stations) that plugged shared devices as printers.
On NT and Windows 95, 97 and 98 systems swap file configuration is very important. For best performance do the following:
If you have problems NT server work speed, the problem can be too slow processor. Check that in NT Performance Monitor by checking average value for Counter Processor Que Length. If value goes over 2000 You sure need a new CPU, but if goes over 1800 - think about it.
In any case, adding RAM memory can not do wrong ...
NT tries to detect how much L2 cache memory is available and if it fails, it acts as it is 256 Kb cache. Pentium motherboards usually has 512 Kb, sometimes all megabyte and part of L2 cache is unused with worse performance. In that case edit REGISTRY on following way:
Find key HLM\SYSTEM\Current ControlSet\Control\Session Manager\Memory Management, click twice to SecondLevelDataCache, switch to decimal and type 1024 (for 1 MB L2 cache) or 512 (for 512 Kb L2 cache), click OK and restart computer.
You will not notice the difference on computers that use small applications but on larger "hardware consuming" applications difference will be noticed.
Windows NT is sensitive to low quality or incompatible hardware specially RAM memory. If you often get blue screens of death or General Protection Fault messages and you can't find what causes it, it is time to check RAM memory. To locate problem, do the following:
Same problems can cause CPU overheating, specially on first Cyrix 6x86 ST, and AMD Duron CPU's. Check is it cooling fan on CPU cooler operational.
It happens that Windows 98 uninstall deletes BOOT.INI that is very important with NTLDR and NTDETECT.COM for Windows-a NT booting . To overcame this problem before Windows-a 98 uninstall format floppy disk from NT and copy named files to it. You will be able to boot NT from floppy disk like this and to copy BOOT.INI to root folder of C: partition.
Sometimes Windows NT do not allow to install any other software no matter there is enough free space on HDD and user has rights to do it. Often happens that some program make damage to config.nt file on line files=. It happens that this line looks as files=7/&!"F#T&. Change this line from any editor (use Notepad), write files=40 and restart computer.
NT-a 4.0 has problem when installed on HDD larger than 8 GB. Install process blocks, partitions are formatted to long or some data on disk can not be accessed. Solution of this problem you can find in Service pack 4 from which you have to copy ATAPI.SYS over old file with same name.
NTFS file system allows definition of access rights for every file on disk. To grant default rights to system files you can use program FIXACL.EXE.
If you want to install Windows NT on computer witht Adaptec 2940 SCSI host controller, you will have to use one trick. Without this trick system will crash without any error notice on first reboot. You have to switch on Enable Disconnection option in setup of Adaptec SCSI hosta (2940) for hard disc used for NT installation.
If you forgot admin password on Windows NT system it is a PROBLEM. If you remember first admin password you choose when installing NT and saved Rescue floppy, start system from it and everything will be O.K. If you didn't... well, you have serious problem that we do not know easy solution for.