There are certain reasons why users still prefer to use different versions of Windows XP. Someone uses old programs, someone does not want to get used to new systems, someone works on old computers, and there is no practical sense in installing a more modern operating system. However, in Windows XP, both processor cores (if there are two) are not always used effectively.
Instructions
Step 1
Install fresh drivers for system devices - motherboard chipset and coprocessor. Make sure there is no conflict in the drivers. To do this, launch the "Device Manager" and see if all devices are installed correctly and if there are any icons in the form of question and exclamation marks. If such a picture is observed, reinstall the drivers for the problem equipment.
Step 2
Install updates for Windows XP. Despite the fact that this operating system was released a dozen years ago, updates for the system can still be found on Microsoft servers. Download and install SP3. At the moment, this is the latest service pack for this system. If you have an active internet connection, the system can automatically download updates.
Step 3
Install updates for AMD and Intel processors. You can find them on the official website of processor manufacturers. For AMD processors, a Dual Core Optimizer utility has been developed specifically to address the issue of dual core operation. Edit the registry key under the path HKEY_LOCAL_MACHINE / SYSTEM / CurrentControlSet / Control / Session Manager, where a Throttle key with a PerfEnablePackageIdle DWORD parameter with a value of 1 should be present (if not, create a key).
Step 4
Check the boot.ini file for the / usepmtimer parameter. If the parameter is missing, add the line multi (0) disk (0) rdisk (0) partition (1) WINDOWS = "Microsoft Windows XP Professional" / noexecute = optin / fastdetect / usepmtimer. You can check the operation of two processors through the task manager, which is launched by simultaneously pressing the CTRL, alt="Image" and DEL keys. On the Performance tab, notice how the CPU utilization is split into two areas.