Performance problemsProblem SolutionExcessive fragmented files exist on thestorage drives.Note: Depending on the volume of the storage drives and amount ofdata stored on the storage drives, the disk-defragmentation processmight take up to several hours.1. Close any open programs and windows.2. Open the Start menu.3. Click Windows System ➙ File Explorer ➙ This PC.4. Right-click your C drive and then click Properties.5. Click the Tools tab.6. Click Optimize. Select the drive as desired, and then clickOptimize.7. Follow the on-screen instructions.The free storage drive space is insufficient.• Clean out your Inbox, Sent Items, and Deleted Items folders fromyour e-mail application.• Clean up your C drive.1. Open the Start menu.2. Click Windows System ➙ File Explorer ➙ This PC.3. Right-click your C drive and then click Properties.4. Check the amount of free space, and then click Disk Cleanup.5. A list of unnecessary file categories is displayed. Select thecategory you want to delete, and then click OK.• Disable some Windows features or remove some unnecessaryprograms.1. Go to Control Panel and view by large icons or small icons.2. Click Programs and Features.3. Do one of the following:– To disable some Windows features, click Turn Windowsfeatures on or off. Follow the on-screen instructions.– To remove some unnecessary programs, select theprogram you want to remove, and then click Uninstall/Change or Uninstall.The free memory space is insufficient.• Right-click a blank area on the taskbar and open Task Manager.Then, end some tasks you are not performing.• Install additional memory modules.44 M90q Hardware Maintenance Manual