SMARTDRV requires extended memory (XMS). Before running SMARTDRV, your CONFIG.SYS file have this line:
Execute the file. You may need to run it from the command line or double-click it, depending on your environment. smartdrv.exe download
You ran SMARTDRV twice. Fix: Reboot or use /R to reset the cache, then reload. SMARTDRV requires extended memory (XMS)
If you’re just trying to install an old OS in a virtual machine (VirtualBox, VMware), use their built-in disk acceleration instead – it’s faster and safer. You ran SMARTDRV twice
It stores recently accessed data in RAM. When a program requests data from the disk, SMARTDrive first checks the cache. If the data is present, it is read from RAM—a process thousands of times faster than a physical disk seek. Double Buffering: Loaded via CONFIG.SYS
Boot to DOS.