Hello vfbsilva, It seems like you're facing a few issues after a clean Windows 7 installation. Let's address these one by one: 1. Windows.old Folder: - The "Windows.old" folder is created when you perform a clean install of Windows over a previous installation. It contains your old Windows installation files, user profiles, and program files. - The presence of the "Windows.old" folder generally does not impact your system's performance. However, it does consume disk space. - If you are concerned about disk space or want a completely fresh start, you can safely delete the "Windows.old" folder. Just make sure you don't need any files from your previous installation. 2. Backup Issues related to VSS and SPP: - The Volume Shadow Copy Service (VSS) and Software Protection Platform (SPP) are essential Windows components that are used for various functions including backups. - If Windows is unable to create backups due to issues with VSS and SPP, it can be concerning. These components are critical for system backups and system restore points. - To resolve backup issues related to VSS and SPP, you may need to troubleshoot and fix these components. This can involve checking the services, ensuring they are running, and resolving any errors reported. 3. SP1 Installation: - Service Pack 1 (SP1) is an important update for Windows 7 that includes security and performance improvements. If you are unable to install SP1, it might be related to the overall system health or other issues. - The inability to install SP1 could be related to the previous issues with VSS and SPP, as a healthy system is required for smooth updates. - Before considering a complete reformat, it's recommended to troubleshoot the backup issues, VSS, SPP, and SP1 installation problems individually. It's advisable to address these concerns step by step to avoid the need for a complete reinstallation unless absolutely necessary. If you need guidance on troubleshooting any specific issue further, feel free to ask for more detailed instructions. Kind regards.