It is not very difficult to have a trouble-free PC. Just a few simple maintenance activities can help you achieve your goal. Listed below are a few simple guidelines that you can follow to maintain a trouble-free PC.

1. Update your system: Many computer errors, such as DLL and driver errors occur because the associated software or device driver is not updated. Also, if you have not turned on the automatic Windows Update feature on your Windows XP or Windows Vista computer, then you are likely to have outdated files on the system. These outdated files not only cause compatibility problems, but may also become a security hazard. To prevent all these problems, you must regularly update your system with security releases, services packs and patches released by your operating system, application, and device driver manufacturers.
2. Clean your Windows registry: The registry is an essential Windows component because it contains all the configuration information related to software, hardware, user preferences, and system settings. Registry problems arise due to the accumulation of a large amount of unwanted, invalid and outdated registry entries. This unwanted data causes the registry to bloat up to a very large size and thus cause file corruption and fragmentation. This, in turn, causes system slowdowns and errors. To prevent all these problems, you must regularly scan and clean your Windows registry to clear all unwanted digital junk from it. You can do this easily with the help of a reliable registry cleaner tool.
3. Scan and remove malware infections: Many computer errors, such as rundll errors occur due to virus and spyware infections. These programs infect your healthy files and prevent them from working normally. To prevent and remove malware infections from the system, you must use reliable antivirus and antispyware tools to scan, detect, remove and prevent malware infections on your PC. You must also keep these security tools updated with the latest virus and spyware definitions to ensure that you are protected against the latest threats.
4. Uninstall unwanted programs: If you frequently add and remove programs on your system, you are quite likely to have programs that you don’t use. To speed up your PC and to ensure that it stays free from errors, you must use a reliable program uninstaller or the Add or Remove Programs utility to uninstall these unwanted programs.
5. Free up space on the hard disk: To ensure that your hard disk stays free of bad sectors and unwanted clutter, you must regularly clean it using the Windows Disk Cleanup utility. You must also use the Disk Defragmenter periodically to maintain a contiguous and optimized hard disk. 
6. Check the system memory: A faulty memory or RAM chip can also generate problems on your computer. To ensure that all the memory chips on your system are working fine and are compatible with each other as well as with the motherboard, you may use a reliable computer memory test diagnostic utility. This utility will run various tests on the memory chips and will report if there are any errors. If a faulty memory chip is detected, you must replace it to resolve your computer problems.
7. Clean hardware components: Deposits of dust particles on computer hardware components can cause overheating, which in turn can cause physical damage to these components. To prevent this, you must periodically open up and vacuum clean your computer to ensure that it is free from dust deposits.

TechScope can assist in carrying out any or all of these tasks.