It is generally recommended to clean the inside of your Dell laptop or computer every 3 to 6 months. However, if you notice excessive dust buildup or your laptop is overheating, it is advisable to clean it more frequently.
Whether to upgrade or buy a new Dell laptop or computer depends on several factors, including your computer age, the severity of the issues, the cost of repairs, and your specific needs. Generally, if your laptop is outdated, requires significant upgrades, or the cost of repairs exceeds the value of the system, it may be more cost-effective to invest in a new one.